{"id":27634,"date":"2024-09-25T11:51:18","date_gmt":"2024-09-25T03:51:18","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=12435"},"modified":"2024-09-25T11:51:18","modified_gmt":"2024-09-25T03:51:18","slug":"%e6%8e%a2%e7%b4%a2ebpf%e5%9c%a8%e5%8d%ab%e6%98%9f%e9%80%9a%e4%bf%a1%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e6%80%a7%e8%83%bd%e6%8f%90%e5%8d%87%e9%80%94%e5%be%84","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/27634.html","title":{"rendered":"\u63a2\u7d22eBPF\u5728\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u6027\u80fd\u63d0\u5347\u9014\u5f84"},"content":{"rendered":"

\t\t\t\t\u63a2\u7d22eBPF<\/a>\u5728\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u6027\u80fd\u63d0\u5347\u9014\u5f84<\/p>\n\n\n\n\n

\u5728\u5f53\u4eca\u9ad8\u5ea6\u4e92\u8054\u7684\u4e16\u754c\u4e2d\uff0c\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u4e3a\u5168\u7403\u8303\u56f4\u5185\u7684\u901a\u4fe1\u63d0\u4f9b\u4e86\u5173\u952e\u7684\u8fde\u63a5\u3002\u7136\u800c\uff0c\u968f\u7740\u6570\u636e\u6d41\u91cf\u7684\u4e0d\u65ad\u589e\u957f\u548c\u5bf9\u901a\u4fe1\u6027\u80fd\u8981\u6c42\u7684\u65e5\u76ca\u63d0\u9ad8\uff0c\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u9762\u4e34\u7740\u8bf8\u591a\u6311\u6218\u3002\u5176\u4e2d\uff0c\u5982\u4f55\u6709\u6548\u5730\u91c7\u96c6\u548c\u5206\u53d1\u7f51\u7edc\u6d41\u91cf\uff0c\u4ee5\u5b9e\u73b0\u6027\u80fd\u7684\u4f18\u5316\u548c\u63d0\u5347\uff0c\u6210\u4e3a\u4e86\u4e00\u4e2a\u5173\u952e\u7684\u7814\u7a76\u9886\u57df\u3002\u4e91\u6749\u7f51\u7edc\u4f5c\u4e3a\u4e00\u5bb6\u5728\u7f51\u7edc\u6280\u672f\u9886\u57df\u5177\u6709\u4e30\u5bcc\u7ecf\u9a8c\u548c\u521b\u65b0\u80fd\u529b\u7684\u4f01\u4e1a\uff0c\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e9b\u6709\u4ef7\u503c\u7684\u601d\u8def\u548c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n

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

\u4e00\u3001\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u7684\u7279\u70b9\u4e0e\u6311\u6218<\/p>\n\n\n\n\n

\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u5177\u6709\u8986\u76d6\u8303\u56f4\u5e7f\u3001\u4e0d\u53d7\u5730\u7406\u6761\u4ef6\u9650\u5236\u7b49\u663e\u8457\u4f18\u52bf\uff0c\u4f46\u4e5f\u5b58\u5728\u4e00\u4e9b\u56fa\u6709\u7684\u7279\u70b9\u548c\u6311\u6218\u3002\u9996\u5148\uff0c\u536b\u661f\u4e0e\u5730\u9762\u7ad9\u4e4b\u95f4\u7684\u4fe1\u53f7\u4f20\u8f93\u5b58\u5728\u8f83\u5927\u7684\u5ef6\u8fdf\uff0c\u8fd9\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528\u9020\u6210\u4e86\u5f71\u54cd\u3002\u5176\u6b21\uff0c\u536b\u661f\u901a\u4fe1\u7684\u5e26\u5bbd\u8d44\u6e90\u76f8\u5bf9\u6709\u9650\uff0c\u9700\u8981\u9ad8\u6548\u5730\u5229\u7528\u548c\u5206\u914d\u3002\u6b64\u5916\uff0c\u7531\u4e8e\u536b\u661f\u6240\u5904\u7684\u73af\u5883\u590d\u6742\uff0c\u4fe1\u53f7\u5bb9\u6613\u53d7\u5230\u5e72\u6270\u548c\u8870\u51cf\uff0c\u5bfc\u81f4\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u964d\u4f4e\u3002<\/p>\n\n\n\n\n

\u5728\u7f51\u7edc\u6d41\u91cf\u65b9\u9762\uff0c\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u9700\u8981\u5904\u7406\u6765\u81ea\u4e0d\u540c\u7528\u6237\u548c\u5e94\u7528\u7684\u591a\u6837\u5316\u6d41\u91cf\uff0c\u5305\u62ec\u8bed\u97f3\u3001\u89c6\u9891\u3001\u6570\u636e\u7b49\u3002\u5982\u4f55\u51c6\u786e\u5730\u91c7\u96c6\u8fd9\u4e9b\u6d41\u91cf\uff0c\u5e76\u6839\u636e\u5176\u7279\u70b9\u8fdb\u884c\u5408\u7406\u7684\u5206\u53d1\u548c\u8c03\u5ea6\uff0c\u662f\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n\n\n\n\n

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

eBPF\uff08ExtendedBerkeleyPacketFilter\uff09\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\u3002eBPF\u53ef\u4ee5\u5728\u7f51\u7edc\u6570\u636e\u5305\u5230\u8fbe\u65f6\u8fdb\u884c\u5b9e\u65f6\u5904\u7406\u548c\u8fc7\u6ee4\uff0c\u4ece\u800c\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u548c\u63a7\u5236\u3002<\/p>\n\n\n\n\n

\u4e0e\u4f20\u7edf\u7684\u7f51\u7edc\u76d1\u63a7\u65b9\u6cd5\u76f8\u6bd4\uff0ceBPF\u5177\u6709\u4ee5\u4e0b\u663e\u8457\u4f18\u52bf\uff1a<\/p>\n\n\n\n\n

1.\u4f4e\u5f00\u9500\uff1aeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u907f\u514d\u4e86\u9891\u7e41\u7684\u7528\u6237\u6001\u548c\u5185\u6838\u6001\u5207\u6362\uff0c\u51cf\u5c11\u4e86\u7cfb\u7edf\u8d44\u6e90\u7684\u6d88\u8017\u3002<\/p>\n\n\n\n\n

2.\u7075\u6d3b\u6027\uff1a\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u7f16\u5199\u81ea\u5b9a\u4e49\u7684eBPF\u7a0b\u5e8f\uff0c\u5b9e\u73b0\u5404\u79cd\u590d\u6742\u7684\u7f51\u7edc\u529f\u80fd\u3002<\/p>\n\n\n\n\n

3.\u5b9e\u65f6\u6027\uff1a\u80fd\u591f\u5728\u6570\u636e\u5305\u5230\u8fbe\u7684\u77ac\u95f4\u8fdb\u884c\u5904\u7406\uff0c\u63d0\u4f9b\u5b9e\u65f6\u7684\u7f51\u7edc\u6d1e\u5bdf\u3002<\/p>\n\n\n\n\n

\u4e09\u3001eBPF\u5728\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u5e94\u7528\u6f5c\u529b<\/p>\n\n\n\n\n

1.\u6d41\u91cf\u4f18\u5316<\/p>\n\n\n\n\n

\u901a\u8fc7eBPF\u5bf9\u7f51\u7edc\u6d41\u91cf\u8fdb\u884c\u5b9e\u65f6\u5206\u6790\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u4e0d\u540c\u7c7b\u578b\u7684\u6d41\u91cf\uff0c\u5e76\u6839\u636e\u5176\u4f18\u5148\u7ea7\u548c\u5e26\u5bbd\u9700\u6c42\u8fdb\u884c\u667a\u80fd\u8c03\u5ea6\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u8bed\u97f3\u548c\u89c6\u9891\u6d41\u91cf\uff0c\u53ef\u4ee5\u4f18\u5148\u5206\u914d\u5e26\u5bbd\u8d44\u6e90\uff0c\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u548c\u6296\u52a8\u3002<\/p>\n\n\n\n\n

2.\u9519\u8bef\u68c0\u6d4b\u4e0e\u4fee\u590d<\/p>\n\n\n\n\n

eBPF\u53ef\u4ee5\u5b9e\u65f6\u76d1\u6d4b\u7f51\u7edc\u6570\u636e\u5305\u7684\u5b8c\u6574\u6027\u548c\u6b63\u786e\u6027\uff0c\u53ca\u65f6\u53d1\u73b0\u5e76\u7ea0\u6b63\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\uff0c\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n\n

3.\u5b89\u5168\u589e\u5f3a<\/p>\n\n\n\n\n

\u5229\u7528eBPF\u53ef\u4ee5\u5bf9\u8fdb\u51fa\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u7684\u6d41\u91cf\u8fdb\u884c\u6df1\u5ea6\u5305\u68c0\u6d4b\uff0c\u9632\u8303\u6076\u610f\u653b\u51fb\u548c\u975e\u6cd5\u8bbf\u95ee\uff0c\u4fdd\u969c\u7cfb\u7edf\u7684\u5b89\u5168\u3002<\/p>\n\n\n\n\n

4.\u6027\u80fd\u76d1\u63a7\u4e0e\u8c03\u4f18<\/p>\n\n\n\n\n

eBPF\u80fd\u591f\u6536\u96c6\u8be6\u7ec6\u7684\u7f51\u7edc\u6027\u80fd\u6307\u6807\uff0c\u5982\u541e\u5410\u91cf\u3001\u5ef6\u8fdf\u3001\u4e22\u5305\u7387\u7b49\uff0c\u4e3a\u7cfb\u7edf\u7684\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u6570\u636e\u652f\u6301\u3002<\/p>\n\n\n\n\n

\u56db\u3001\u4e91\u6749\u7f51\u7edc\u7684\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6<\/a>\u5206\u53d1\u89e3\u51b3\u65b9\u6848<\/p>\n\n\n\n\n

\u4e91\u6749\u7f51\u7edc\u5728\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6<\/a>\u5206\u53d1\u9886\u57df\u62e5\u6709\u5148\u8fdb\u7684\u6280\u672f\u548c\u4e30\u5bcc\u7684\u7ecf\u9a8c\u3002\u5176\u89e3\u51b3\u65b9\u6848\u57fa\u4e8eeBPF\u6280\u672f\uff0c\u7ed3\u5408\u4e86\u6df1\u5ea6\u7684\u7f51\u7edc\u6d1e\u5bdf\u548c\u667a\u80fd\u7684\u6d41\u91cf\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n\n\n\n\n

1.\u9ad8\u7cbe\u5ea6\u7684\u6d41\u91cf\u91c7\u96c6<\/p>\n\n\n\n\n

\u4e91\u6749\u7f51\u7edc\u7684\u65b9\u6848\u80fd\u591f\u7cbe\u786e\u5730\u91c7\u96c6\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u7684\u7f51\u7edc\u6d41\u91cf\uff0c\u5305\u62ec\u6570\u636e\u5305\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u901a\u8fc7eBPF\u7684\u9ad8\u6548\u8fc7\u6ee4\u529f\u80fd\uff0c\u53ef\u4ee5\u5feb\u901f\u7b5b\u9009\u51fa\u6709\u4ef7\u503c\u7684\u6570\u636e\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u5904\u7406\u548c\u5b58\u50a8\u5f00\u9500\u3002<\/p>\n\n\n\n\n

2.\u667a\u80fd\u7684\u6d41\u91cf\u5206\u53d1<\/p>\n\n\n\n\n

\u57fa\u4e8e\u5bf9\u6d41\u91cf\u7279\u5f81\u7684\u5206\u6790\uff0c\u4e91\u6749\u7f51\u7edc\u7684\u89e3\u51b3\u65b9\u6848\u53ef\u4ee5\u667a\u80fd\u5730\u5c06\u6d41\u91cf\u5206\u53d1\u5230\u4e0d\u540c\u7684\u8def\u5f84\u548c\u8282\u70b9\uff0c\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u548c\u8d44\u6e90\u7684\u6700\u4f18\u5229\u7528\u3002\u540c\u65f6\uff0c\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u548c\u4f18\u5148\u7ea7\uff0c\u786e\u4fdd\u5173\u952e\u6d41\u91cf\u5f97\u5230\u4f18\u5148\u5904\u7406\u3002<\/p>\n\n\n\n\n

3.\u5b9e\u65f6\u7684\u6027\u80fd\u76d1\u63a7\u4e0e\u544a\u8b66<\/p>\n\n\n\n\n

\u901a\u8fc7eBPF\u6536\u96c6\u7684\u6027\u80fd\u6570\u636e\uff0c\u4e91\u6749\u7f51\u7edc\u63d0\u4f9b\u5b9e\u65f6\u7684\u76d1\u63a7\u548c\u53ef\u89c6\u5316\u754c\u9762\uff0c\u8ba9\u8fd0\u7ef4\u4eba\u5458\u80fd\u591f\u6e05\u6670\u5730\u4e86\u89e3\u7cfb\u7edf\u7684\u8fd0\u884c\u72b6\u6001\u3002\u5f53\u51fa\u73b0\u6027\u80fd\u5f02\u5e38\u65f6\uff0c\u53ca\u65f6\u53d1\u51fa\u544a\u8b66\uff0c\u4ee5\u4fbf\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u8fdb\u884c\u4fee\u590d\u3002<\/p>\n\n\n\n\n

4.\u5b89\u5168\u9632\u62a4\u4e0e\u7b56\u7565\u6267\u884c<\/p>\n\n\n\n\n

\u5229\u7528eBPF\u8fdb\u884c\u6df1\u5ea6\u5305\u68c0\u6d4b\uff0c\u4e91\u6749\u7f51\u7edc\u7684\u65b9\u6848\u53ef\u4ee5\u6709\u6548\u5730\u9632\u8303\u7f51\u7edc\u653b\u51fb\u548c\u975e\u6cd5\u8bbf\u95ee\u3002\u540c\u65f6\uff0c\u6839\u636e\u9884\u8bbe\u7684\u5b89\u5168\u7b56\u7565\uff0c\u5bf9\u6d41\u91cf\u8fdb\u884c\u63a7\u5236\u548c\u8fc7\u6ee4\uff0c\u4fdd\u969c\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u7684\u5b89\u5168\u8fd0\u884c\u3002<\/p>\n\n\n\n\n

\u4e94\u3001\u5b9e\u65bdeBPF\u9762\u4e34\u7684\u6311\u6218\u4e0e\u5e94\u5bf9\u7b56\u7565<\/p>\n\n\n\n\n

\u5c3d\u7ba1eBPF\u5728\u536b\u661f\u901a\u4fe1\u7cfb\u7edf\u4e2d\u5177\u6709\u5de8\u5927\u7684\u6f5c\u529b\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002<\/p>\n\n\n\n\n

1.\u5185\u6838\u517c\u5bb9\u6027<\/p>\n\n\n\n\n

\u4e0d\u540c\u7248\u672c\u7684\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u5bf9eBPF\u7684\u652f\u6301\u7a0b\u5ea6\u53ef\u80fd\u5b58\u5728\u5dee\u5f02\uff0c\u9700\u8981\u786e\u4fdd\u6240\u4f7f\u7528\u7684eBPF\u7a0b\u5e8f\u5728\u76ee\u6807\u7cfb\u7edf\u4e0a\u80fd\u591f\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n\n\n\n\n

2.\u5f00\u53d1\u590d\u6742\u6027<\/p>\n\n\n\n\n

\u7f16\u5199eBPF\u7a0b\u5e8f\u9700\u8981\u5bf9\u5185\u6838\u7f16\u7a0b\u548c\u7f51\u7edc\u534f\u8bae\u6709\u6df1\u5165\u7684\u7406\u89e3\uff0c\u589e\u52a0\u4e86\u5f00\u53d1\u7684\u96be\u5ea6\u548c\u95e8\u69db\u3002<\/p>\n\n\n\n\n

3.\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027<\/p>\n\n\n\n\n

\u7531\u4e8eeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u4e00\u65e6\u51fa\u73b0\u95ee\u9898\u53ef\u80fd\u4f1a\u5f71\u54cd\u6574\u4e2a\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u9700\u8981\u8fdb\u884c\u4e25\u683c\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n\n

\u9488\u5bf9\u8fd9\u4e9b\u6311\u6218\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u5e94\u5bf9\u7b56\u7565\uff1a<\/p>\n\n\n\n\n

1.\u9009\u62e9\u7a33\u5b9a\u4e14\u5e7f\u6cdb\u652f\u6301eBPF\u7684\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7248\u672c\uff0c\u5e76\u53ca\u65f6\u8fdb\u884c\u66f4\u65b0\u548c\u7ef4\u62a4\u3002<\/p>\n\n\n\n\n

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