{"id":15739,"date":"2024-10-05T09:42:54","date_gmt":"2024-10-05T01:42:54","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=15739"},"modified":"2024-10-05T09:42:54","modified_gmt":"2024-10-05T01:42:54","slug":"ebpf%e5%9c%a8%e8%99%9a%e6%8b%9f%e5%8c%96%e7%8e%af%e5%a2%83%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8%e6%8e%a2%e7%b4%a2%e4%b8%8e%e5%ae%9e%e8%b7%b5%e7%bb%8f%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/15739.html","title":{"rendered":"eBPF\u5728\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u5e94\u7528\u63a2\u7d22\u4e0e\u5b9e\u8df5\u7ecf\u9a8c"},"content":{"rendered":"

\t\t\t\teBPF<\/a>\u5728\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u5e94\u7528\u63a2\u7d22\u4e0e\u5b9e\u8df5\u7ecf\u9a8c<\/p>\n\n\n\n\n

\u5728\u5f53\u4eca\u6570\u5b57\u5316\u7684\u65f6\u4ee3\uff0c\u865a\u62df\u5316\u6280\u672f\u5df2\u6210\u4e3a\u4f01\u4e1a\u6784\u5efa\u9ad8\u6548\u3001\u7075\u6d3b\u548c\u53ef\u6269\u5c55IT\u57fa\u7840\u8bbe\u65bd\u7684\u91cd\u8981\u624b\u6bb5\u3002\u7136\u800c\uff0c\u968f\u7740\u865a\u62df\u5316\u73af\u5883\u7684\u65e5\u76ca\u590d\u6742\uff0c\u7f51\u7edc\u6d41\u91cf\u7684\u7ba1\u7406\u548c\u76d1\u63a7\u4e5f\u9762\u4e34\u7740\u5de8\u5927\u7684\u6311\u6218\u3002\u4f20\u7edf\u7684\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6<\/a>\u548c\u5206\u53d1\u65b9\u6cd5\u5f80\u5f80\u96be\u4ee5\u6ee1\u8db3\u865a\u62df\u5316\u73af\u5883\u7684\u9700\u6c42\uff0c\u800ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u6280\u672f\u7684\u51fa\u73b0\u4e3a\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u548c\u65b9\u6cd5\u3002\u672c\u6587\u5c06\u4ee5\u4e91\u6749\u7f51\u7edc\u4e3a\u4f8b\uff0c\u6df1\u5165\u63a2\u8ba8eBPF\u5728\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u5e94\u7528\u63a2\u7d22\u4e0e\u5b9e\u8df5\u7ecf\u9a8c\u3002<\/p>\n\n\n\n

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

\u4e00\u3001\u865a\u62df\u5316\u73af\u5883\u4e2d\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u7684\u6311\u6218<\/p>\n\n\n\n\n

\u5728\u865a\u62df\u5316\u73af\u5883\u4e2d\uff0c\u865a\u62df\u673a\uff08VM\uff09\u4e4b\u95f4\u7684\u7f51\u7edc\u6d41\u91cf\u4ea4\u4e92\u53d8\u5f97\u66f4\u52a0\u9891\u7e41\u548c\u590d\u6742\u3002\u4f20\u7edf\u7684\u57fa\u4e8e\u7269\u7406\u7f51\u7edc\u8bbe\u5907\u7684\u6d41\u91cf\u91c7\u96c6\u548c\u76d1\u63a7\u65b9\u6cd5\u96be\u4ee5\u6df1\u5165\u5230\u865a\u62df\u673a\u5185\u90e8\uff0c\u65e0\u6cd5\u83b7\u53d6\u5230\u7ec6\u7c92\u5ea6\u7684\u6d41\u91cf\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u52a8\u6001\u6027\u548c\u5f39\u6027\u6269\u5c55\u7279\u6027\u4e5f\u4f7f\u5f97\u7f51\u7edc\u62d3\u6251\u7ed3\u6784\u4e0d\u65ad\u53d8\u5316\uff0c\u589e\u52a0\u4e86\u6d41\u91cf\u7ba1\u7406\u7684\u96be\u5ea6\u3002<\/p>\n\n\n\n\n

\u4e8c\u3001eBPF\u6280\u672f\u7b80\u4ecb<\/p>\n\n\n\n\n

eBPF\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\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u901a\u8fc7eBPF\uff0c\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u5185\u6838\u4e8b\u4ef6\u7684\u9ad8\u6548\u76d1\u63a7\u548c\u5904\u7406\u3002\u5728\u7f51\u7edc\u9886\u57df\uff0ceBPF\u53ef\u4ee5\u7528\u4e8e\u6570\u636e\u5305\u8fc7\u6ee4\u3001\u6d41\u91cf\u7edf\u8ba1\u3001\u6027\u80fd\u5206\u6790\u7b49\u591a\u79cd\u4efb\u52a1\u3002<\/p>\n\n\n\n\n

\u4e09\u3001\u4e91\u6749\u7f51\u7edc\u57fa\u4e8eeBPF\u7684\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6<\/a>\u5206\u53d1\u89e3\u51b3\u65b9\u6848<\/p>\n\n\n\n\n

\u4e91\u6749\u7f51\u7edc\u4f5c\u4e3a\u4e00\u5bb6\u4e13\u6ce8\u4e8e\u7f51\u7edc\u521b\u65b0\u6280\u672f\u7684\u4f01\u4e1a\uff0c\u5145\u5206\u5229\u7528eBPF\u7684\u4f18\u52bf\uff0c\u6253\u9020\u4e86\u4e00\u5957\u5148\u8fdb\u7684\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6\u5206\u53d1\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n\n

1.\u9ad8\u6548\u7684\u6d41\u91cf\u91c7\u96c6<\/p>\n\n\n\n\n

-\u4e91\u6749\u7f51\u7edc\u7684\u89e3\u51b3\u65b9\u6848\u5229\u7528eBPF\u5728\u5185\u6838\u4e2d\u7684\u94a9\u5b50\u70b9\uff0c\u80fd\u591f\u76f4\u63a5\u6355\u83b7\u865a\u62df\u673a\u8fdb\u51fa\u7684\u7f51\u7edc\u6570\u636e\u5305\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u65b9\u6cd5\u4e2d\u7684\u6570\u636e\u5305\u590d\u5236\u548c\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500\uff0c\u5927\u5927\u63d0\u9ad8\u4e86\u6d41\u91cf\u91c7\u96c6\u7684\u6548\u7387\u3002<\/p>\n\n\n\n\n

-\u652f\u6301\u5bf9\u5404\u79cd\u534f\u8bae\u548c\u5e94\u7528\u5c42\u6570\u636e\u7684\u89e3\u6790\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u5168\u9762\u3001\u8be6\u7ec6\u7684\u6d41\u91cf\u4fe1\u606f\u3002<\/p>\n\n\n\n\n

2.\u7075\u6d3b\u7684\u6d41\u91cf\u5206\u53d1<\/p>\n\n\n\n\n

-\u6839\u636e\u7528\u6237\u7684\u9700\u6c42\u548c\u7b56\u7565\uff0c\u5c06\u91c7\u96c6\u5230\u7684\u6d41\u91cf\u7075\u6d3b\u5730\u5206\u53d1\u5230\u4e0d\u540c\u7684\u76ee\u7684\u5730\uff0c\u5982\u76d1\u63a7\u7cfb\u7edf\u3001\u5206\u6790\u5de5\u5177\u6216\u5b58\u50a8\u8bbe\u5907\u3002<\/p>\n\n\n\n\n

-\u652f\u6301\u591a\u79cd\u5206\u53d1\u65b9\u5f0f\uff0c\u5982\u5b9e\u65f6\u63a8\u9001\u3001\u6279\u91cf\u4f20\u8f93\u7b49\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n\n

3.\u7cbe\u51c6\u7684\u6d41\u91cf\u8fc7\u6ee4\u548c\u7b5b\u9009<\/p>\n\n\n\n\n

-\u501f\u52a9eBPF\u7684\u5f3a\u5927\u8fc7\u6ee4\u529f\u80fd\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u6e90\u5730\u5740\u3001\u76ee\u7684\u5730\u5740\u3001\u7aef\u53e3\u53f7\u3001\u534f\u8bae\u7c7b\u578b\u7b49\u591a\u79cd\u6761\u4ef6\u5bf9\u6d41\u91cf\u8fdb\u884c\u7cbe\u51c6\u7684\u8fc7\u6ee4\u548c\u7b5b\u9009\uff0c\u53ea\u91c7\u96c6\u548c\u5206\u53d1\u611f\u5174\u8da3\u7684\u6d41\u91cf\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u4f20\u8f93\u548c\u5904\u7406\u3002<\/p>\n\n\n\n\n

4.\u5b9e\u65f6\u7684\u6027\u80fd\u76d1\u63a7\u548c\u544a\u8b66<\/p>\n\n\n\n\n

-\u5b9e\u65f6\u76d1\u6d4b\u7f51\u7edc\u6d41\u91cf\u7684\u6027\u80fd\u6307\u6807\uff0c\u5982\u5e26\u5bbd\u5229\u7528\u7387\u3001\u6570\u636e\u5305\u5ef6\u8fdf\u3001\u4e22\u5305\u7387\u7b49\u3002<\/p>\n\n\n\n\n

-\u5f53\u6d41\u91cf\u51fa\u73b0\u5f02\u5e38\u6216\u6027\u80fd\u6307\u6807\u8d85\u8fc7\u9608\u503c\u65f6\uff0c\u53ca\u65f6\u53d1\u51fa\u544a\u8b66\u901a\u77e5\uff0c\u5e2e\u52a9\u7ba1\u7406\u5458\u5feb\u901f\u53d1\u73b0\u548c\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n\n\n\n\n

\u56db\u3001\u5b9e\u8df5\u7ecf\u9a8c\u4e0e\u6210\u679c<\/p>\n\n\n\n\n

\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e91\u6749\u7f51\u7edc\u7684\u57fa\u4e8eeBPF\u7684\u89e3\u51b3\u65b9\u6848\u53d6\u5f97\u4e86\u663e\u8457\u7684\u6210\u679c\u3002<\/p>\n\n\n\n\n

1.\u63d0\u5347\u4e86\u7f51\u7edc\u53ef\u89c1\u6027<\/p>\n\n\n\n\n

-\u5e2e\u52a9\u4f01\u4e1a\u5168\u9762\u4e86\u89e3\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u7f51\u7edc\u6d41\u91cf\u60c5\u51b5\uff0c\u5305\u62ec\u865a\u62df\u673a\u4e4b\u95f4\u7684\u901a\u4fe1\u6a21\u5f0f\u3001\u6d41\u91cf\u7684\u5206\u5e03\u548c\u8d8b\u52bf\u7b49\uff0c\u4e3a\u7f51\u7edc\u89c4\u5212\u548c\u4f18\u5316\u63d0\u4f9b\u4e86\u6709\u529b\u7684\u4f9d\u636e\u3002<\/p>\n\n\n\n\n

2.\u4f18\u5316\u4e86\u7f51\u7edc\u6027\u80fd<\/p>\n\n\n\n\n

-\u901a\u8fc7\u5bf9\u6d41\u91cf\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\uff0c\u80fd\u591f\u5feb\u901f\u53d1\u73b0\u7f51\u7edc\u4e2d\u7684\u6027\u80fd\u74f6\u9888\u548c\u6545\u969c\u70b9\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u4f18\u5316\u63aa\u65bd\uff0c\u5982\u8c03\u6574\u7f51\u7edc\u914d\u7f6e\u3001\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\u7b49\uff0c\u663e\u8457\u63d0\u5347\u4e86\u7f51\u7edc\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n\n

3.\u589e\u5f3a\u4e86\u5b89\u5168\u9632\u62a4\u80fd\u529b<\/p>\n\n\n\n\n

-\u5bf9\u5f02\u5e38\u6d41\u91cf\u548c\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u8fdb\u884c\u5b9e\u65f6\u76d1\u6d4b\u548c\u9884\u8b66\uff0c\u53ca\u65f6\u53d1\u73b0\u548c\u963b\u6b62\u7f51\u7edc\u653b\u51fb\uff0c\u4fdd\u969c\u4e86\u865a\u62df\u5316\u73af\u5883\u7684\u5b89\u5168\u3002<\/p>\n\n\n\n\n

4.\u964d\u4f4e\u4e86\u8fd0\u7ef4\u6210\u672c<\/p>\n\n\n\n\n

-\u9ad8\u6548\u7684\u6d41\u91cf\u91c7\u96c6\u548c\u5206\u53d1\u65b9\u5f0f\uff0c\u51cf\u5c11\u4e86\u5bf9\u786c\u4ef6\u8bbe\u5907\u7684\u4f9d\u8d56\uff0c\u964d\u4f4e\u4e86\u91c7\u8d2d\u548c\u7ef4\u62a4\u6210\u672c\u3002\u540c\u65f6\uff0c\u81ea\u52a8\u5316\u7684\u76d1\u63a7\u548c\u544a\u8b66\u529f\u80fd\uff0c\u4e5f\u51cf\u8f7b\u4e86\u8fd0\u7ef4\u4eba\u5458\u7684\u5de5\u4f5c\u8d1f\u62c5\uff0c\u63d0\u9ad8\u4e86\u8fd0\u7ef4\u6548\u7387\u3002<\/p>\n\n\n\n\n

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

\u968f\u7740\u865a\u62df\u5316\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5e94\u7528\u573a\u666f\u7684\u4e0d\u65ad\u62d3\u5c55\uff0ceBPF\u5728\u865a\u62df\u5316\u73af\u5883\u4e2d\u7684\u5e94\u7528\u524d\u666f\u5c06\u66f4\u52a0\u5e7f\u9614\u3002\u672a\u6765\uff0c\u4e91\u6749\u7f51\u7edc\u5c06\u7ee7\u7eed\u52a0\u5927\u5bf9eBPF\u6280\u672f\u7684\u7814\u53d1\u548c\u521b\u65b0\u6295\u5165\uff0c\u4e0d\u65ad\u5b8c\u5584\u548c\u4f18\u5316\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6\u5206\u53d1\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u52a0\u667a\u80fd\u3001\u9ad8\u6548\u3001\u5b89\u5168\u7684\u7f51\u7edc\u670d\u52a1\u3002<\/p>\n\n\n\n\n

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