{"id":33386,"date":"2025-03-07T10:24:29","date_gmt":"2025-03-07T02:24:29","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=33386"},"modified":"2025-03-07T10:24:29","modified_gmt":"2025-03-07T02:24:29","slug":"ebpf%e5%af%b9%e7%bd%91%e7%bb%9c%e8%99%9a%e6%8b%9f%e5%8c%96%e6%8a%80%e6%9c%af%e7%9a%84%e4%bc%98%e5%8c%96%e6%9c%89%e5%93%aa%e4%ba%9b%e5%88%9b%e6%96%b0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/33386.html","title":{"rendered":"eBPF\u5bf9\u7f51\u7edc\u865a\u62df\u5316\u6280\u672f\u7684\u4f18\u5316\u6709\u54ea\u4e9b\u521b\u65b0\uff1f"},"content":{"rendered":"

\n

\"eBPF\u5bf9\u7f51\u7edc\u865a\u62df\u5316\u6280\u672f\u7684\u4f18\u5316\u6709\u54ea\u4e9b\u521b\u65b0\uff1f\"<\/p>\n<\/p>\n

\n

\u5728\u4e91\u8ba1\u7b97\u548c\u5fae\u670d\u52a1\u67b6\u6784\u4e3b\u5bfc\u7684\u65f6\u4ee3\uff0c\u7f51\u7edc\u865a\u62df\u5316\u6280\u672f\u7684\u6027\u80fd\u4e0e\u7075\u6d3b\u6027\u5df2\u6210\u4e3a\u51b3\u5b9a\u57fa\u7840\u8bbe\u65bd\u7ade\u4e89\u529b\u7684\u6838\u5fc3\u8981\u7d20\u3002\u4f20\u7edf\u65b9\u6848\u5982OVS\uff08Open vSwitch\uff09\u867d\u7136\u89e3\u51b3\u4e86\u865a\u62df\u7f51\u7edc\u7684\u57fa\u672c\u9700\u6c42\uff0c\u4f46\u968f\u7740\u5bb9\u5668\u5316\u3001\u670d\u52a1\u7f51\u683c\u7b49\u6280\u672f\u7684\u666e\u53ca\uff0c\u5185\u6838\u6001\u4e0e\u7528\u6237\u6001\u9891\u7e41\u5207\u6362\u5e26\u6765\u7684\u6027\u80fd\u635f\u8017<\/strong>\u3001\u9759\u6001\u89c4\u5219\u96be\u4ee5\u9002\u5e94\u52a8\u6001\u6d41\u91cf<\/strong>\u7b49\u95ee\u9898\u65e5\u76ca\u51f8\u663e\u3002\u6b63\u662f\u5728\u8fd9\u79cd\u80cc\u666f\u4e0b\uff0ceBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\u51ed\u501f\u5176\u72ec\u7279\u7684\u53ef\u7f16\u7a0b\u5185\u6838\u80fd\u529b\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u7f51\u7edc\u865a\u62df\u5316\u7684\u6280\u672f\u8303\u5f0f\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF<\/a>\u5982\u4f55\u901a\u8fc7\u5185\u6838\u7ea7\u6570\u636e\u5904\u7406<\/strong>\u3001\u52a8\u6001\u7b56\u7565\u6ce8\u5165<\/strong>\u548c\u96f6\u62f7\u8d1d\u4f18\u5316<\/strong>\u7b49\u521b\u65b0\u673a\u5236\uff0c\u4e3a\u4e91\u539f\u751f\u7f51\u7edc\u7684\u9ad8\u6548\u8fd0\u7ef4\u5f00\u8f9f\u65b0\u8def\u5f84\u3002<\/p>\n

\n

\u4e00\u3001\u6253\u7834\u6027\u80fd\u74f6\u9888\uff1a\u5185\u6838\u53ef\u7f16\u7a0b\u6027\u4e0e\u96f6\u5f00\u9500\u89c2\u6d4b<\/strong><\/h3>\n

\u4f20\u7edf\u7f51\u7edc\u865a\u62df\u5316\u4f9d\u8d56\u4e8e\u7528\u6237\u6001\u4ee3\u7406\uff08\u5982OVS\u7684vSwitchd\uff09\u5904\u7406\u6570\u636e\u5305\u8f6c\u53d1\u4e0e\u7b56\u7565\u6267\u884c\uff0c\u8fd9\u5bfc\u81f4\u6570\u636e\u9700\u8981\u5728\u7528\u6237\u6001\u4e0e\u5185\u6838\u6001\u4e4b\u95f4\u9891\u7e41\u590d\u5236\uff0c\u4ea7\u751f\u9ad8\u8fbe30%\u7684CPU\u5f00\u9500\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u7a7a\u95f4\u76f4\u63a5\u8fd0\u884c\u6c99\u76d2\u5316\u7a0b\u5e8f<\/strong>\uff0c\u6d88\u9664\u4e86\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u635f\u8017\u3002\u4f8b\u5982\uff0cCilium\u9879\u76ee\u5229\u7528eBPF\u5c06\u5bb9\u5668\u7f51\u7edc\u7684iptables\u89c4\u5219\u66ff\u6362\u4e3aeBPF Map\u6570\u636e\u7ed3\u6784<\/strong>\uff0c\u4f7f\u7b56\u7565\u67e5\u8be2\u590d\u6742\u5ea6\u4eceO(n)\u964d\u81f3O(1)\uff0c\u5ef6\u8fdf\u964d\u4f4e\u81f3\u5fae\u79d2\u7ea7\u3002<\/p>\n

\u66f4\u5173\u952e\u7684\u662f\uff0ceBPF\u652f\u6301XDP\uff08eXpress Data Path\uff09<\/strong>\u6280\u672f\uff0c\u5141\u8bb8\u5728\u7f51\u7edc\u9a71\u52a8\u5c42\u8fdb\u884c\u6570\u636e\u5305\u5904\u7406\u3002\u8fd9\u4e00\u673a\u5236\u4e0d\u4ec5\u53ef\u5b9e\u73b0\u7ebf\u901f\u6d41\u91cf\u8fc7\u6ee4<\/strong>\uff08\u5982DDoS\u9632\u5fa1\uff09\uff0c\u8fd8\u80fd\u7ed5\u8fc7\u5185\u6838\u534f\u8bae\u6808\uff0c\u5c06\u6570\u636e\u76f4\u63a5\u8f6c\u53d1\u81f3\u76ee\u6807\u5bb9\u5668\uff0c\u51cf\u5c11\u9ad8\u8fbe50%\u7684CPU\u5360\u7528\u3002AWS\u57282022\u5e74\u7684\u6848\u4f8b\u5206\u6790\u663e\u793a\uff0c\u57fa\u4e8eXDP\u7684CNI\u63d2\u4ef6\u4f7f\u8282\u70b9\u7f51\u7edc\u541e\u5410\u91cf\u63d0\u5347\u4e864\u500d\u3002<\/p>\n

\n

\u4e8c\u3001\u52a8\u6001\u7f51\u7edc\u7b56\u7565\uff1a\u4ece\u9759\u6001\u914d\u7f6e\u5230\u5b9e\u65f6\u7f16\u7a0b<\/strong><\/h3>\n

\u4f20\u7edf\u9632\u706b\u5899\u6216ACL\uff08\u8bbf\u95ee\u63a7\u5236\u5217\u8868\uff09\u4f9d\u8d56\u9884\u5b9a\u4e49\u7684\u9759\u6001\u89c4\u5219\uff0c\u800c\u4e91\u539f\u751f\u73af\u5883\u4e2d\u7684\u670d\u52a1\u5b9e\u4f8b\u53ef\u80fd\u6bcf\u79d2\u52a8\u6001\u6269\u7f29\u5bb9\u3002eBPF\u901a\u8fc7\u52a8\u6001\u52a0\u8f7d\u548c\u66f4\u65b0\u5185\u6838\u7a0b\u5e8f<\/strong>\u7684\u7279\u6027\uff0c\u4f7f\u5f97\u7f51\u7edc\u7b56\u7565\u80fd\u591f\u5b9e\u65f6\u54cd\u5e94\u96c6\u7fa4\u72b6\u6001\u53d8\u5316\u3002\u4f8b\u5982\uff0cTetragon\u9879\u76ee\u7ed3\u5408Kubernetes API\uff0c\u5728Pod\u542f\u52a8\u65f6\u81ea\u52a8\u6ce8\u5165eBPF\u7a0b\u5e8f\uff0c\u5b9e\u65f6\u76d1\u63a7\u5176\u7f51\u7edc\u884c\u4e3a\u5e76\u6267\u884c\u57fa\u4e8e\u8eab\u4efd\uff08\u800c\u975eIP\uff09\u7684\u8bbf\u95ee\u63a7\u5236\u3002<\/p>\n

eBPF\u7684\u53ef\u89c2\u6d4b\u6027\u80fd\u529b<\/strong>\u4e0e\u7b56\u7565\u6267\u884c\u5f62\u6210\u95ed\u73af\u3002\u901a\u8fc7BPF Compiler Collection\uff08BCC\uff09<\/strong>\u5de5\u5177\u94fe\uff0c\u8fd0\u7ef4\u4eba\u5458\u53ef\u4ee5\u5b9e\u65f6\u91c7\u96c6\u7f51\u7edc\u6d41\u91cf\u7684TCP\u91cd\u4f20\u7387\u3001RTT\u7b49\u6307\u6807\uff0c\u5e76\u52a8\u6001\u8c03\u6574\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\u3002\u8fd9\u79cd\u201c\u611f\u77e5-\u51b3\u7b56-\u6267\u884c\u201d\u7684\u81ea\u52a8\u5316\u6d41\u7a0b\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u4eba\u5de5\u5e72\u9884\u6210\u672c\u3002<\/p>\n

\n

\u4e09\u3001\u534f\u8bae\u6808\u5378\u8f7d\uff1a\u5b9a\u5236\u5316\u7f51\u7edc\u6570\u636e\u5904\u7406<\/strong><\/h3>\n

\u5728\u6df7\u5408\u4e91\u6216\u591a\u79df\u6237\u573a\u666f\u4e2d\uff0c\u4e0d\u540c\u4e1a\u52a1\u53ef\u80fd\u9700\u8981\u5bf9\u7f51\u7edc\u534f\u8bae\u8fdb\u884c\u5b9a\u5236\u5316\u5904\u7406\u3002\u4f20\u7edf\u65b9\u6848\u53d7\u9650\u4e8e\u5185\u6838\u534f\u8bae\u6808\u7684\u521a\u6027\u67b6\u6784\uff0c\u800ceBPF\u5141\u8bb8\u5f00\u53d1\u8005\u901a\u8fc7BPF_PROG_TYPE_SOCK_OPS<\/strong>\u7b49\u7a0b\u5e8f\u7c7b\u578b\uff0c\u5728\u5185\u6838\u4e2d\u63d2\u5165\u81ea\u5b9a\u4e49\u903b\u8f91\u3002\u4f8b\u5982\uff1a<\/p>\n

    \n
  • HTTP\u5c42\u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u76f4\u63a5\u5728L4\u534f\u8bae\u6808\u89e3\u6790HTTP\u5934\u90e8\uff0c\u5b9e\u73b0\u65e0\u9700\u53cd\u5411\u4ee3\u7406\u7684\u4e03\u5c42\u8def\u7531\uff1b\n<\/li>\n
  • \u52a0\u5bc6\u6d41\u91cf\u4f18\u5316<\/strong>\uff1a\u5728TCP\u5c42\u62e6\u622aTLS\u63e1\u624b\u6570\u636e\uff0c\u7ed3\u5408\u7528\u6237\u6001\u5bc6\u94a5\u7ba1\u7406\u5b9e\u73b0\u900f\u660e\u52a0\u5bc6\uff1b\n<\/li>\n
  • \u534f\u8bae\u6269\u5c55\u652f\u6301<\/strong>\uff1a\u4e3aQUIC\u6216\u81ea\u5b9a\u4e49\u534f\u8bae\u6dfb\u52a0\u5185\u6838\u7ea7\u89e3\u6790\u80fd\u529b\uff0c\u51cf\u5c11\u7528\u6237\u6001\u5e93\u7684\u4f9d\u8d56\u3002\n<\/li>\n<\/ul>\n

    \u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97eBPF\u6210\u4e3a\u670d\u52a1\u7f51\u683c\uff08\u5982Istio\uff09\u7684\u7406\u60f3\u6570\u636e\u5e73\u9762\u3002Linkerd\u9879\u76ee\u901a\u8fc7eBPF\u5b9e\u73b0\u900f\u660e\u6d41\u91cf\u52ab\u6301\uff0c\u907f\u514d\u4e86\u4f20\u7edfSidecar\u4ee3\u7406\u7684\u8d44\u6e90\u6d88\u8017\u3002<\/p>\n

    \n

    \u56db\u3001\u5b89\u5168\u8fb9\u754c\u7684\u91cd\u6784\uff1a\u4ece\u7f51\u7edc\u9694\u79bb\u5230\u8fdb\u7a0b\u7ea7\u5fae\u9694\u79bb<\/strong><\/h3>\n

    \u4f20\u7edf\u7f51\u7edc\u865a\u62df\u5316\u4f9d\u8d56VLAN\u6216\u5b89\u5168\u7ec4\u5b9e\u73b0\u9694\u79bb\uff0c\u4f46\u5bb9\u5668\u95f4\u5171\u4eab\u5185\u6838\u7684\u7279\u6027\u4f7f\u5f97\u653b\u51fb\u9762\u6269\u5927\u3002eBPF\u7684LSM\uff08Linux Security Module\uff09\u6302\u94a9\u70b9<\/strong>\u4e0e\u7f51\u7edc\u94a9\u5b50\uff08TC\u3001XDP\uff09<\/strong>\u7ed3\u5408\uff0c\u53ef\u5b9e\u65bd\u66f4\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u7b56\u7565\u3002\u4f8b\u5982\uff1a<\/p>\n

      \n
    • \u8fdb\u7a0b\u7ea7\u8bbf\u95ee\u63a7\u5236<\/strong>\uff1a\u57fa\u4e8ecgroup ID\u9650\u5236\u7279\u5b9a\u5bb9\u5668\u8fdb\u7a0b\u7684\u7f51\u7edc\u8bbf\u95ee\u6743\u9650\uff1b\n<\/li>\n
    • \u7cfb\u7edf\u8c03\u7528\u8fc7\u6ee4<\/strong>\uff1a\u76d1\u63a7\u5bb9\u5668\u5185\u8fdb\u7a0b\u7684connect()\u6216bind()\u8c03\u7528\uff0c\u963b\u65ad\u5f02\u5e38\u884c\u4e3a\uff1b\n<\/li>\n
    • \u96f6\u4fe1\u4efb\u7f51\u7edc\u6a21\u578b<\/strong>\uff1a\u901a\u8fc7eBPF\u9a8c\u8bc1\u670d\u52a1\u8eab\u4efd\u8bc1\u4e66\uff0c\u5b9e\u73b0mTLS\u7684\u900f\u660e\u5316\u90e8\u7f72\u3002\n<\/li>\n<\/ul>\n

      Falco\u7b49\u5f00\u6e90\u9879\u76ee\u5df2\u5229\u7528eBPF\u5b9e\u73b0\u5b9e\u65f6\u5165\u4fb5\u68c0\u6d4b\uff0c\u5176\u89c4\u5219\u5f15\u64ce\u53ef\u76f4\u63a5\u5728\u5185\u6838\u5c42\u963b\u65ad\u53ef\u7591\u6d41\u91cf\uff0c\u5c06\u68c0\u6d4b\u5ef6\u8fdf\u4ece\u6beb\u79d2\u7ea7\u964d\u81f3\u7eb3\u79d2\u7ea7\u3002<\/p>\n

      \n

      \u4e94\u3001\u4e0e\u786c\u4ef6\u52a0\u901f\u7684\u534f\u540c\uff1a\u91ca\u653eSmartNIC\u6f5c\u529b<\/strong><\/h3>\n

      \u968f\u7740\u667a\u80fd\u7f51\u5361\uff08SmartNIC\uff09\u7684\u666e\u53ca\uff0ceBPF\u7684\u786c\u4ef6\u5378\u8f7d\u80fd\u529b\u8fdb\u4e00\u6b65\u91ca\u653e\u6027\u80fd\u7ea2\u5229\u3002\u901a\u8fc7AF_XDP<\/strong>\u5957\u63a5\u5b57\u7c7b\u578b\uff0ceBPF\u7a0b\u5e8f\u53ef\u5c06\u6307\u5b9a\u6d41\u91cf\u961f\u5217\u76f4\u63a5\u6620\u5c04\u5230\u7528\u6237\u6001\u5185\u5b58\uff0c\u7ed3\u5408\u7f51\u5361\u4e0a\u7684FPGA\u52a0\u901feBPF\u5b57\u8282\u7801\u6267\u884c\u3002\u5fae\u8f6fAzure\u7684\u6d4b\u8bd5\u8868\u660e\uff0c\u8fd9\u79cd\u67b6\u6784\u4f7f\u865a\u62df\u5316\u7f51\u7edc\u7684PPS\uff08\u6bcf\u79d2\u6570\u636e\u5305\u6570\uff09\u5904\u7406\u80fd\u529b\u63d0\u5347\u4e8610\u500d\uff0c\u540c\u65f6CPU\u5229\u7528\u7387\u4e0b\u964d60%\u3002<\/p>\n

      \u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662f\uff0ceBPF\u7684\u8de8\u5e73\u53f0\u7279\u6027\uff08\u652f\u6301Linux\u3001Windows\u5185\u6838\uff09\u4f7f\u5176\u6210\u4e3a\u6df7\u5408\u57fa\u7840\u8bbe\u65bd\u7684\u7edf\u4e00\u62bd\u8c61\u5c42\u3002\u65e0\u8bba\u662f\u516c\u6709\u4e91VM\u3001\u8fb9\u7f18\u8282\u70b9\u8fd8\u662f\u88f8\u91d1\u5c5e\u670d\u52a1\u5668\uff0c\u5747\u53ef\u901a\u8fc7eBPF\u5b9e\u73b0\u4e00\u81f4\u6027\u7684\u7f51\u7edc\u7b56\u7565\u7ba1\u7406\u3002<\/p>\n

      \n

      \u516d\u3001\u6311\u6218\u4e0e\u672a\u6765\u65b9\u5411<\/strong><\/h3>\n

      \u5c3d\u7ba1eBPF\u4f18\u52bf\u663e\u8457\uff0c\u5176\u6280\u672f\u843d\u5730\u4ecd\u9762\u4e34\u517c\u5bb9\u6027\u4e0e\u590d\u6742\u6027\u6311\u6218\u3002\u4f8b\u5982\uff0c\u4e0d\u540c\u5185\u6838\u7248\u672c\u5bf9eBPF\u529f\u80fd\u7684\u652f\u6301\u5dee\u5f02\u53ef\u80fd\u5bfc\u81f4\u788e\u7247\u5316\uff0c\u800c\u7f16\u5199\u5b89\u5168\u7684eBPF\u7a0b\u5e8f\u9700\u8981\u6df1\u5165\u7406\u89e3\u5185\u6838\u5185\u5b58\u6a21\u578b\u3002\u793e\u533a\u6b63\u5728\u901a\u8fc7CO-RE\uff08Compile Once \u2013 Run Everywhere\uff09<\/strong>\u548cBPF Type Format\uff08BTF\uff09<\/strong>\u7b49\u5de5\u5177\u94fe\u6539\u8fdb\u8de8\u5e73\u53f0\u517c\u5bb9\u6027\u3002<\/p>\n

      eBPF\u53ef\u80fd\u8fdb\u4e00\u6b65\u4e0eDPU\uff08\u6570\u636e\u5904\u7406\u5668\uff09\u7ed3\u5408\uff0c\u5f62\u6210\u201c\u8f6f\u4ef6\u5b9a\u4e49\u786c\u4ef6\u201d\u7684\u878d\u5408\u67b6\u6784\u3002\u4e0e\u6b64\u540c\u65f6\uff0ceBPF\u5728\u670d\u52a1\u7f51\u683c\u3001\u533a\u5757\u94fe\u7f51\u7edc\u7b49\u9886\u57df\u7684\u521b\u65b0\u5e94\u7528\uff0c\u5c06\u6301\u7eed\u63a8\u52a8\u7f51\u7edc\u865a\u62df\u5316\u6280\u672f\u7684\u8fb9\u754c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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\u4f20\u7edf\u9632\u706b\u5899\u6216ACL\uff08\u8bbf\u95ee\u63a7\u5236\u5217\u8868\uff09\u4f9d\u8d56\u9884\u5b9a\u4e49\u7684\u9759\u6001\u89c4\u5219\uff0c\u800c\u4e91\u539f\u751f\u73af\u5883\u4e2d\u7684\u670d\u52a1\u5b9e\u4f8b\u53ef\u80fd\u6bcf\u79d2\u52a8\u6001\u6269\u7f29\u5bb9\u3002eBPF\u901a\u8fc7\u52a8\u6001\u52a0\u8f7d\u548c\u66f4\u65b0\u5185\u6838\u7a0b\u5e8f\u7684\u7279\u6027\uff0c\u4f7f\u5f97\u7f51\u7edc\u7b56\u7565\u80fd\u591f\u5b9e\u65f6\u54cd\u5e94\u96c6\u7fa4\u72b6\u6001\u53d8\u5316\u3002\u4f8b\u5982\uff0cTetragon\u9879\u76ee\u7ed3\u5408Kubernetes API\uff0c\u5728Pod\u542f\u52a8\u65f6\u81ea\u52a8\u6ce8\u5165eBPF\u7a0b\u5e8f\uff0c\u5b9e\u65f6\u76d1\u63a7\u5176\u7f51\u7edc\u884c\u4e3a\u5e76\u6267\u884c\u57fa\u4e8e\u8eab\u4efd\uff08\u800c\u975eIP\uff09\u7684\u8bbf\u95ee\u63a7\u5236\u3002 eBPF\u7684\u53ef\u89c2\u6d4b\u6027\u80fd\u529b\u4e0e\u7b56\u7565\u6267\u884c\u5f62\u6210\u95ed\u73af\u3002\u901a\u8fc7BPF Compiler Collection\uff08BCC\uff09\u5de5\u5177\u94fe\uff0c\u8fd0\u7ef4\u4eba\u5458\u53ef\u4ee5\u5b9e\u65f6\u91c7\u96c6\u7f51\u7edc\u6d41\u91cf\u7684TCP\u91cd\u4f20\u7387\u3001RTT\u7b49\u6307\u6807\uff0c\u5e76\u52a8\u6001\u8c03\u6574\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\u3002\u8fd9\u79cd\u201c\u611f\u77e5-\u51b3\u7b56-\u6267\u884c\u201d\u7684\u81ea\u52a8\u5316\u6d41\u7a0b\uff0c\u663e\u8457\u964d\u4f4e\u4e86\u4eba\u5de5\u5e72\u9884\u6210\u672c\u3002 \u4e09\u3001\u534f\u8bae\u6808\u5378\u8f7d\uff1a\u5b9a\u5236\u5316\u7f51\u7edc\u6570\u636e\u5904\u7406 \u5728\u6df7\u5408\u4e91\u6216\u591a\u79df\u6237\u573a\u666f\u4e2d\uff0c\u4e0d\u540c\u4e1a\u52a1\u53ef\u80fd\u9700\u8981\u5bf9\u7f51\u7edc\u534f\u8bae\u8fdb\u884c\u5b9a\u5236\u5316\u5904\u7406\u3002\u4f20\u7edf\u65b9\u6848\u53d7\u9650\u4e8e\u5185\u6838\u534f\u8bae\u6808\u7684\u521a\u6027\u67b6\u6784\uff0c\u800ceBPF\u5141\u8bb8\u5f00\u53d1\u8005\u901a\u8fc7BPF_PROG_TYPE_SOCK_OPS\u7b49\u7a0b\u5e8f\u7c7b\u578b\uff0c\u5728\u5185\u6838\u4e2d\u63d2\u5165\u81ea\u5b9a\u4e49\u903b\u8f91\u3002\u4f8b\u5982\uff1a HTTP\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a\u76f4\u63a5\u5728L4\u534f\u8bae\u6808\u89e3\u6790HTTP\u5934\u90e8\uff0c\u5b9e\u73b0\u65e0\u9700\u53cd\u5411\u4ee3\u7406\u7684\u4e03\u5c42\u8def\u7531\uff1b \u52a0\u5bc6\u6d41\u91cf\u4f18\u5316\uff1a\u5728TCP\u5c42\u62e6\u622aTLS\u63e1\u624b\u6570\u636e\uff0c\u7ed3\u5408\u7528\u6237\u6001\u5bc6\u94a5\u7ba1\u7406\u5b9e\u73b0\u900f\u660e\u52a0\u5bc6\uff1b \u534f\u8bae\u6269\u5c55\u652f\u6301\uff1a\u4e3aQUIC\u6216\u81ea\u5b9a\u4e49\u534f\u8bae\u6dfb\u52a0\u5185\u6838\u7ea7\u89e3\u6790\u80fd\u529b\uff0c\u51cf\u5c11\u7528\u6237\u6001\u5e93\u7684\u4f9d\u8d56\u3002 \u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97eBPF\u6210\u4e3a\u670d\u52a1\u7f51\u683c\uff08\u5982Istio\uff09\u7684\u7406\u60f3\u6570\u636e\u5e73\u9762\u3002Linkerd\u9879\u76ee\u901a\u8fc7eBPF\u5b9e\u73b0\u900f\u660e\u6d41\u91cf\u52ab\u6301\uff0c\u907f\u514d\u4e86\u4f20\u7edfSidecar\u4ee3\u7406\u7684\u8d44\u6e90\u6d88\u8017\u3002 \u56db\u3001\u5b89\u5168\u8fb9\u754c\u7684\u91cd\u6784\uff1a\u4ece\u7f51\u7edc\u9694\u79bb\u5230\u8fdb\u7a0b\u7ea7\u5fae\u9694\u79bb \u4f20\u7edf\u7f51\u7edc\u865a\u62df\u5316\u4f9d\u8d56VLAN\u6216\u5b89\u5168\u7ec4\u5b9e\u73b0\u9694\u79bb\uff0c\u4f46\u5bb9\u5668\u95f4\u5171\u4eab\u5185\u6838\u7684\u7279\u6027\u4f7f\u5f97\u653b\u51fb\u9762\u6269\u5927\u3002eBPF\u7684LSM\uff08Linux Security Module\uff09\u6302\u94a9\u70b9\u4e0e\u7f51\u7edc\u94a9\u5b50\uff08TC\u3001XDP\uff09\u7ed3\u5408\uff0c\u53ef\u5b9e\u65bd\u66f4\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u7b56\u7565\u3002\u4f8b\u5982\uff1a \u8fdb\u7a0b\u7ea7\u8bbf\u95ee\u63a7\u5236\uff1a\u57fa\u4e8ecgroup ID\u9650\u5236\u7279\u5b9a\u5bb9\u5668\u8fdb\u7a0b\u7684\u7f51\u7edc\u8bbf\u95ee\u6743\u9650\uff1b \u7cfb\u7edf\u8c03\u7528\u8fc7\u6ee4\uff1a\u76d1\u63a7\u5bb9\u5668\u5185\u8fdb\u7a0b\u7684connect()\u6216bind()\u8c03\u7528\uff0c\u963b\u65ad\u5f02\u5e38\u884c\u4e3a\uff1b \u96f6\u4fe1\u4efb\u7f51\u7edc\u6a21\u578b\uff1a\u901a\u8fc7eBPF\u9a8c\u8bc1\u670d\u52a1\u8eab\u4efd\u8bc1\u4e66\uff0c\u5b9e\u73b0mTLS\u7684\u900f\u660e\u5316\u90e8\u7f72\u3002 Falco\u7b49\u5f00\u6e90\u9879\u76ee\u5df2\u5229\u7528eBPF\u5b9e\u73b0\u5b9e\u65f6\u5165\u4fb5\u68c0\u6d4b\uff0c\u5176\u89c4\u5219\u5f15\u64ce\u53ef\u76f4\u63a5\u5728\u5185\u6838\u5c42\u963b\u65ad\u53ef\u7591\u6d41\u91cf\uff0c\u5c06\u68c0\u6d4b\u5ef6\u8fdf\u4ece\u6beb\u79d2\u7ea7\u964d\u81f3\u7eb3\u79d2\u7ea7\u3002 \u4e94\u3001\u4e0e\u786c\u4ef6\u52a0\u901f\u7684\u534f\u540c\uff1a\u91ca\u653eSmartNIC\u6f5c\u529b \u968f\u7740\u667a\u80fd\u7f51\u5361\uff08SmartNIC\uff09\u7684\u666e\u53ca\uff0ceBPF\u7684\u786c\u4ef6\u5378\u8f7d\u80fd\u529b\u8fdb\u4e00\u6b65\u91ca\u653e\u6027\u80fd\u7ea2\u5229\u3002\u901a\u8fc7AF_XDP\u5957\u63a5\u5b57\u7c7b\u578b\uff0ceBPF\u7a0b\u5e8f\u53ef\u5c06\u6307\u5b9a\u6d41\u91cf\u961f\u5217\u76f4\u63a5\u6620\u5c04\u5230\u7528\u6237\u6001\u5185\u5b58\uff0c\u7ed3\u5408\u7f51\u5361\u4e0a\u7684FPGA\u52a0\u901feBPF\u5b57\u8282\u7801\u6267\u884c\u3002\u5fae\u8f6fAzure\u7684\u6d4b\u8bd5\u8868\u660e\uff0c\u8fd9\u79cd\u67b6\u6784\u4f7f\u865a\u62df\u5316\u7f51\u7edc\u7684PPS\uff08\u6bcf\u79d2\u6570\u636e\u5305\u6570\uff09\u5904\u7406\u80fd\u529b\u63d0\u5347\u4e8610\u500d\uff0c\u540c\u65f6CPU\u5229\u7528\u7387\u4e0b\u964d60%\u3002 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