{"id":21052,"date":"2024-11-12T10:46:29","date_gmt":"2024-11-12T02:46:29","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=21052"},"modified":"2024-11-12T10:46:29","modified_gmt":"2024-11-12T02:46:29","slug":"%e7%a7%91%e6%99%ae%ef%bc%9aebpf%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e7%b3%bb%e7%bb%9f%e7%9a%84%e5%93%8d%e5%ba%94%e8%83%bd%e5%8a%9b","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/21052.html","title":{"rendered":"\u79d1\u666e\uff1aeBPF\u5982\u4f55\u63d0\u5347\u7cfb\u7edf\u7684\u54cd\u5e94\u80fd\u529b"},"content":{"rendered":"

\t\t\t\teBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6280\u672f\uff0c\u6700\u521d\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\uff0c\u4f46\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55\uff0c\u5176\u5e94\u7528\u8303\u56f4\u5df2\u7ecf\u6269\u5c55\u5230\u7cfb\u7edf\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u3001\u5b89\u5168\u7b49\u591a\u4e2a\u9886\u57df\u3002eBPF<\/a>\u7684\u6838\u5fc3\u4f18\u52bf\u5728\u4e8e\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u5730\u63d2\u5165\u548c\u6267\u884c\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\uff0c\u4ece\u800c\u6781\u5927\u5730\u63d0\u5347\u4e86\u7cfb\u7edf\u7684\u54cd\u5e94\u80fd\u529b\u548c\u7075\u6d3b\u6027\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u63a2\u8ba8eBPF\u5982\u4f55\u63d0\u5347\u7cfb\u7edf\u7684\u54cd\u5e94\u80fd\u529b\uff0c\u6db5\u76d6\u5176\u5de5\u4f5c\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u4ee5\u53ca\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n\n\n\n\n

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

eBPF\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5c06\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\uff0c\u5e76\u5728\u7279\u5b9a\u7684\u94a9\u5b50\u70b9\uff08hook points\uff09\u4e0a\u6267\u884c\u3002\u8fd9\u4e9b\u94a9\u5b50\u70b9\u53ef\u4ee5\u662f\u7cfb\u7edf\u8c03\u7528\u7684\u5165\u53e3\u548c\u51fa\u53e3\u3001\u7f51\u7edc\u6570\u636e\u5305\u7684\u5904\u7406\u6d41\u7a0b\u3001\u6587\u4ef6\u7cfb\u7edf\u7684\u64cd\u4f5c\u7b49\u3002eBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u4ee5\u6c99\u76d2\u6a21\u5f0f\u8fd0\u884c\uff0c\u786e\u4fdd\u4e86\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n\n\n\n\n\n

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

eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6d41\u7a0b<\/h4>\n\n\n\n\n
    \n\n\n
  1. \u7f16\u5199eBPF\u7a0b\u5e8f<\/strong>\uff1a\u5f00\u53d1\u8005\u4f7f\u7528C\u8bed\u8a00\u6216\u5176\u4ed6\u9ad8\u7ea7\u8bed\u8a00\u7f16\u5199eBPF\u7a0b\u5e8f\uff0c\u8fd9\u4e9b\u7a0b\u5e8f\u901a\u5e38\u7528\u4e8e\u6536\u96c6\u6570\u636e\u3001\u4fee\u6539\u884c\u4e3a\u6216\u8fdb\u884c\u5b89\u5168\u68c0\u67e5\u3002<\/li>\n\n\n\n\n
  2. \u7f16\u8bd1\u548c\u52a0\u8f7d<\/strong>\uff1aeBPF\u7a0b\u5e8f\u88ab\u7f16\u8bd1\u6210eBPF\u5b57\u8282\u7801\uff0c\u5e76\u901a\u8fc7\u7279\u5b9a\u7684\u5de5\u5177\uff08\u5982bpftrace\u3001bcc\u7b49\uff09\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\u3002<\/li>\n\n\n\n\n
  3. \u9a8c\u8bc1\u548c\u6267\u884c<\/strong>\uff1a\u5185\u6838\u7684eBPF\u9a8c\u8bc1\u5668\u5bf9\u52a0\u8f7d\u7684\u7a0b\u5e8f\u8fdb\u884c\u5b89\u5168\u6027\u68c0\u67e5\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u6216\u6027\u80fd\u4e0b\u964d\u3002\u901a\u8fc7\u9a8c\u8bc1\u540e\uff0ceBPF\u7a0b\u5e8f\u5728\u6307\u5b9a\u7684\u94a9\u5b50\u70b9\u4e0a\u6267\u884c\u3002<\/li>\n\n\n\n\n
  4. \u6570\u636e\u6536\u96c6\u548c\u53cd\u9988<\/strong>\uff1aeBPF\u7a0b\u5e8f\u53ef\u4ee5\u5c06\u5176\u6536\u96c6\u7684\u6570\u636e\u5b58\u50a8\u5728\u5185\u6838\u7684\u6620\u5c04\uff08map\uff09\u7ed3\u6784\u4e2d\uff0c\u7528\u6237\u7a7a\u95f4\u7684\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e9b\u6620\u5c04\u83b7\u53d6\u6570\u636e\uff0c\u5e76\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u5206\u6790\u548c\u5904\u7406\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    eBPF\u63d0\u5347\u7cfb\u7edf\u54cd\u5e94\u80fd\u529b\u7684\u673a\u5236<\/h3>\n\n\n\n\n

    1. \u5b9e\u65f6\u76d1\u63a7\u548c\u8bca\u65ad<\/h4>\n\n\n\n\n

    eBPF\u80fd\u591f\u5728\u5185\u6838\u5c42\u9762\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7684\u5404\u79cd\u884c\u4e3a\uff0c\u5305\u62ec\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6d41\u91cf\u3001\u6587\u4ef6\u64cd\u4f5c\u7b49\u3002\u901a\u8fc7\u5728\u5173\u952e\u8def\u5f84\u4e0a\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5feb\u901f\u53d1\u73b0\u548c\u8bca\u65ad\u6027\u80fd\u74f6\u9888\u548c\u5f02\u5e38\u884c\u4e3a\u3002<\/p>\n\n\n\n\n

    \u6848\u4f8b\uff1a\u7cfb\u7edf\u8c03\u7528\u76d1\u63a7<\/strong><\/p>\n\n\n\n\n

    \u901a\u8fc7\u5728\u7cfb\u7edf\u8c03\u7528\u7684\u5165\u53e3\u548c\u51fa\u53e3\u5904\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u6bcf\u4e2a\u7cfb\u7edf\u8c03\u7528\u7684\u6267\u884c\u65f6\u95f4\u3001\u8c03\u7528\u9891\u7387\u7b49\u4fe1\u606f\u3002\u8fd9\u4e9b\u6570\u636e\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u8bc6\u522b\u54ea\u4e9b\u7cfb\u7edf\u8c03\u7528\u8017\u65f6\u8f83\u957f\uff0c\u4ece\u800c\u8fdb\u884c\u9488\u5bf9\u6027\u7684\u4f18\u5316\u3002<\/p>\n\n\n\n\n

    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, int);
    \n    __type(value, long);
    \n} syscall_stats SEC(".maps");
    \n
    \nSEC("tracepoint\/syscalls\/sys_enter")
    \nint sys_enter(struct trace_event_raw_sys_enter *ctx) {
    \n    int syscall_id = ctx->id;
    \n    long *count = bpf_map_lookup_elem(&syscall_stats, &syscall_id);
    \n    if (count) {
    \n        __sync_fetch_and_add(count, 1);
    \n    } else {
    \n        long init_val = 1;
    \n        bpf_map_update_elem(&syscall_stats, &syscall_id, &init_val, BPF_ANY);
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    2. \u52a8\u6001\u6027\u80fd\u4f18\u5316<\/h4>\n\n\n\n\n
    eBPF\u7a0b\u5e8f\u53ef\u4ee5\u6839\u636e\u5b9e\u65f6\u76d1\u63a7\u5230\u7684\u6570\u636e\uff0c\u52a8\u6001\u5730\u8c03\u6574\u7cfb\u7edf\u7684\u884c\u4e3a\uff0c\u4ece\u800c\u4f18\u5316\u6027\u80fd\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\uff1aTCP\u62e5\u585e\u63a7\u5236<\/strong><\/p>\n\n\n\n\n
    \u5728\u7f51\u7edc\u6d41\u91cf\u8f83\u5927\u65f6\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5\u52a8\u6001\u8c03\u6574TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u7684\u53c2\u6570\uff0c\u4ee5\u51cf\u5c11\u4e22\u5305\u7387\u548c\u63d0\u9ad8\u7f51\u7edc\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n\n
    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, __u32);
    \n    __type(value, __u32);
    \n} tcp_cong_params SEC(".maps");
    \n
    \nSEC("cgroup_skb\/egress")
    \nint adjust_tcp_cong(struct __sk_buff *skb) {
    \n    __u32 cgroup_id = skb->cgroup_id;
    \n    __u32 *params = bpf_map_lookup_elem(&tcp_cong_params, &cgroup_id);
    \n    if (params) {
    \n        \/\/ Adjust TCP congestion control parameters
    \n        bpf_skb_set_tunnel_key(skb, params, sizeof(__u32), BPF_F_TUNINFOsko);
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    3. \u5b89\u5168\u589e\u5f3a<\/h4>\n\n\n\n\n
    eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u7b56\u7565\uff0c\u901a\u8fc7\u5728\u5185\u6838\u5c42\u9762\u8fdb\u884c\u5b89\u5168\u68c0\u67e5\uff0c\u9632\u6b62\u6076\u610f\u884c\u4e3a\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\uff1a\u6587\u4ef6\u7cfb\u7edf\u8bbf\u95ee\u63a7\u5236<\/strong><\/p>\n\n\n\n\n
    \u901a\u8fc7\u5728\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u7684\u76f8\u5173\u94a9\u5b50\u70b9\u4e0a\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u7279\u5b9a\u6587\u4ef6\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/p>\n\n\n\n\n
    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, char[256]);
    \n    __type(value, __u32);
    \n} file_access_policy SEC(".maps");
    \n
    \nSEC("tracepoint\/syscalls\/sys_enter_open")
    \nint check_file_access(struct trace_event_raw_sys_enter *ctx) {
    \n    char *filename = (char *)ctx->args[0];
    \n    __u32 *policy = bpf_map_lookup_elem(&file_access_policy, filename);
    \n    if (policy && *policy == 0) {
    \n        \/\/ Deny access
    \n        bpf_printk("Access denied for file: %s\\n", filename);
    \n        return -EPERM;
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    eBPF\u7684\u5e94\u7528\u573a\u666f<\/h3>\n\n\n\n\n
    1. \u7f51\u7edc\u76d1\u63a7\u548c\u4f18\u5316<\/h4>\n\n\n\n\n
    eBPF\u5728\u7f51\u7edc\u76d1\u63a7\u548c\u4f18\u5316\u65b9\u9762\u7684\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\uff0c\u5305\u62ec\u6d41\u91cf\u5206\u6790\u3001DDoS\u9632\u62a4\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\uff1a\u6d41\u91cf\u5206\u6790<\/strong><\/p>\n\n\n\n\n
    \u901a\u8fc7\u5728\u6570\u636e\u5305\u5904\u7406\u7684\u5404\u4e2a\u9636\u6bb5\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u5206\u6790\u7f51\u7edc\u6d41\u91cf\uff0c\u8bc6\u522b\u5f02\u5e38\u6d41\u91cf\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n\n
    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, __u32);
    \n    __type(value, __u64);
    \n} flow_stats SEC(".maps");
    \n
    \nSEC("xdp")
    \nint monitor_traffic(struct xdp_md *ctx) {
    \n    __u32 src_ip = ctx->data[12] << 24 | ctx->data[13] << 16 | ctx->data[14] << 8 | ctx->data[15];
    \n    __u64 *count = bpf_map_lookup_elem(&flow_stats, &src_ip);
    \n    if (count) {
    \n        __sync_fetch_and_add(count, 1);
    \n    } else {
    \n        __u64 init_val = 1;
    \n        bpf_map_update_elem(&flow_stats, &src_ip, &init_val, BPF_ANY);
    \n    }
    \n    return XDP_PASS;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    2. \u7cfb\u7edf\u6027\u80fd\u5206\u6790<\/h4>\n\n\n\n\n
    eBPF\u53ef\u4ee5\u7528\u4e8e\u7cfb\u7edf\u6027\u80fd\u5206\u6790\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u8bc6\u522b\u6027\u80fd\u74f6\u9888\uff0c\u4f18\u5316\u7cfb\u7edf\u914d\u7f6e\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\uff1aCPU\u4f7f\u7528\u7387\u5206\u6790<\/strong><\/p>\n\n\n\n\n
    \u901a\u8fc7\u5728\u8c03\u5ea6\u5668\u7684\u76f8\u5173\u94a9\u5b50\u70b9\u4e0a\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u6bcf\u4e2a\u8fdb\u7a0b\u7684CPU\u4f7f\u7528\u7387\uff0c\u8bc6\u522bCPU\u5bc6\u96c6\u578b\u8fdb\u7a0b\u3002<\/p>\n\n\n\n\n
    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, __u32);
    \n    __type(value, __u64);
    \n} cpu_usage SEC(".maps");
    \n
    \nSEC("tracepoint\/sched\/sched_switch")
    \nint monitor_cpu_usage(struct trace_event_raw_sched_switch *ctx) {
    \n    __u32 pid = ctx->prev_pid;
    \n    __u64 *usage = bpf_map_lookup_elem(&cpu_usage, &pid);
    \n    if (usage) {
    \n        __sync_fetch_and_add(usage, ctx->prev_state);
    \n    } else {
    \n        __u64 init_val = ctx->prev_state;
    \n        bpf_map_update_elem(&cpu_usage, &pid, &init_val, BPF_ANY);
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    3. \u5b89\u5168\u76d1\u63a7\u548c\u9632\u62a4<\/h4>\n\n\n\n\n
    eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u76d1\u63a7\u548c\u9632\u62a4\uff0c\u9632\u6b62\u6076\u610f\u884c\u4e3a\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\uff1a\u8fdb\u7a0b\u884c\u4e3a\u76d1\u63a7<\/strong><\/p>\n\n\n\n\n
    \u901a\u8fc7\u5728\u8fdb\u7a0b\u521b\u5efa\u3001\u6267\u884c\u7b49\u5173\u952e\u64cd\u4f5c\u4e0a\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u8fdb\u7a0b\u7684\u884c\u4e3a\uff0c\u8bc6\u522b\u5f02\u5e38\u884c\u4e3a\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n\n
    #include <linux\/bpf.h>
    \n#include <bpf\/bpf_helpers.h>
    \n
    \nstruct {
    \n    __uint(type, BPF_MAP_TYPE_HASH);
    \n    __uint(max_entries, 1024);
    \n    __type(key, __u32);
    \n    __type(value, __u32);
    \n} process_policy SEC(".maps");
    \n
    \nSEC("tracepoint\/syscalls\/sys_enter_execve")
    \nint check_process_behavior(struct trace_event_raw_sys_enter *ctx) {
    \n    __u32 pid = ctx->pid;
    \n    __u32 *policy = bpf_map_lookup_elem(&process_policy, &pid);
    \n    if (policy && *policy == 0) {
    \n        \/\/ Deny execution
    \n        bpf_printk("Execution denied for PID: \u7895", pid);
    \n        return -EPERM;
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    eBPF\u7684\u672a\u6765\u53d1\u5c55<\/h3>\n\n\n\n\n
    \u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u6210\u719f\u548c\u5e7f\u6cdb\u5e94\u7528\uff0c\u5176\u672a\u6765\u7684\u53d1\u5c55\u524d\u666f\u975e\u5e38\u5e7f\u9614\u3002\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u503c\u5f97\u5173\u6ce8\uff1a<\/p>\n\n\n\n\n
    1. \u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f<\/h4>\n\n\n\n\n
    \u968f\u7740eBPF\u529f\u80fd\u7684\u4e0d\u65ad\u589e\u5f3a\uff0c\u5176\u5e94\u7528\u573a\u666f\u5c06\u66f4\u52a0\u5e7f\u6cdb\uff0c\u4e0d\u4ec5\u9650\u4e8e\u7f51\u7edc\u548c\u7cfb\u7edf\u76d1\u63a7\uff0c\u8fd8\u53ef\u80fd\u6269\u5c55\u5230\u6570\u636e\u5e93\u4f18\u5316\u3001\u5bb9\u5668\u7ba1\u7406\u3001\u8fb9\u7f18\u8ba1\u7b97\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n\n
    2. \u66f4\u9ad8\u6548\u7684\u6027\u80fd\u4f18\u5316<\/h4>\n\n\n\n\n
    eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u5c06\u8fdb\u4e00\u6b65\u63d0\u5347\uff0c\u901a\u8fc7\u4f18\u5316\u7f16\u8bd1\u5668\u548c\u5185\u6838\u652f\u6301\uff0ceBPF\u7a0b\u5e8f\u7684\u6027\u80fd\u5f00\u9500\u5c06\u8fdb\u4e00\u6b65\u964d\u4f4e\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u9ad8\u6548\u7684\u6027\u80fd\u4f18\u5316\u3002<\/p>\n\n\n\n\n
    3. \u66f4\u5b8c\u5584\u7684\u5b89\u5168\u673a\u5236<\/h4>\n\n\n\n\n
    \u968f\u7740eBPF\u5728\u5b89\u5168\u9886\u57df\u7684\u5e94\u7528\u4e0d\u65ad\u6df1\u5165\uff0c\u5176\u5b89\u5168\u673a\u5236\u5c06\u66f4\u52a0\u5b8c\u5584\uff0c\u80fd\u591f\u63d0\u4f9b\u66f4\u7ec6\u7c92\u5ea6\u7684\u5b89\u5168\u63a7\u5236\u548c\u66f4\u5f3a\u5927\u7684\u9632\u62a4\u80fd\u529b\u3002<\/p>\n\n\n\n\n
    4. \u66f4\u6613\u7528\u7684\u5f00\u53d1\u5de5\u5177<\/h4>\n\n\n\n\n
    eBPF\u7684\u5f00\u53d1\u5de5\u5177\u5c06\u66f4\u52a0\u6613\u7528\uff0c\u63d0\u4f9b\u66f4\u4e30\u5bcc\u7684\u5e93\u548cAPI\uff0c\u964d\u4f4e\u5f00\u53d1\u95e8\u69db\uff0c\u4f7f\u66f4\u591a\u7684\u5f00\u53d1\u8005\u80fd\u591f\u5229\u7528eBPF\u6280\u672f\u8fdb\u884c\u7cfb\u7edf\u4f18\u5316\u548c\u5b89\u5168\u9632\u62a4\u3002<\/p>\n\n\n\n\n
    \u603b\u7ed3<\/h3>\n\n\n\n\n
    eBPF\u4f5c\u4e3a\u4e00\u79cd\u5f3a\u5927\u7684\u5185\u6838\u6280\u672f\uff0c\u901a\u8fc7\u5728\u5185\u6838\u5c42\u9762\u52a8\u6001\u63d2\u5165\u548c\u6267\u884c\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u7cfb\u7edf\u7684\u54cd\u5e94\u80fd\u529b\u548c\u7075\u6d3b\u6027\u3002\u5176\u5728\u7f51\u7edc\u76d1\u63a7\u3001\u7cfb\u7edf\u6027\u80fd\u5206\u6790\u3001\u5b89\u5168\u9632\u62a4\u7b49\u591a\u4e2a\u9886\u57df\u7684\u5e94\u7528\uff0c\u5df2\u7ecf\u8bc1\u660e\u4e86\u5176\u5de8\u5927\u7684\u6f5c\u529b\u548c\u4ef7\u503c\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0ceBPF\u5c06\u5728\u672a\u6765\u7684\u7cfb\u7edf\u4f18\u5316\u548c\u5b89\u5168\u9632\u62a4\u4e2d\u53d1\u6325\u66f4\u52a0\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5f00\u53d1\u8005\u5e94\u79ef\u6781\u5b66\u4e60\u548c\u638c\u63e1eBPF\u6280\u672f\uff0c\u4ee5\u5e94\u5bf9\u65e5\u76ca\u590d\u6742\u7684\u7cfb\u7edf\u4f18\u5316\u548c\u5b89\u5168\u6311\u6218\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":21053,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-21052","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\/21052","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=21052"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/21052\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/21053"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=21052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=21052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=21052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}