{"id":32168,"date":"2020-01-17T10:00:32","date_gmt":"2020-01-17T01:00:32","guid":{"rendered":"https:\/\/www.creationline.com\/?p=32168"},"modified":"2020-01-17T08:54:57","modified_gmt":"2020-01-16T23:54:57","slug":"ebpf%e3%82%92%e6%8e%98%e3%82%8a%e4%b8%8b%e3%81%92%e3%82%8btracee%e3%82%92%e6%94%af%e3%81%88%e3%82%8b%e6%8a%80%e8%a1%93-aquasecurity-ebpf-tracee-%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/aquasecurity\/32168","title":{"rendered":"eBPF\u3092\u6398\u308a\u4e0b\u3052\u308b~Tracee\u3092\u652f\u3048\u308b\u6280\u8853~ #AquaSecurity #eBPF #Tracee #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9"},"content":{"rendered":"

\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672020\u5e741\u67086\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c A Deep Dive into eBPF: The Technology that Powers Tracee <\/a>\u300d\u306e\u65e5\u672c\u8a9e\u7ffb\u8a33\u3067\u3059\u3002<\/p>\n

\"\"<\/div>\n<\/p>\n

A Deep Dive into eBPF: The Technology that Powers Tracee<\/h2>\n
\n

Aqua Security \u306e Tracee \u306f\u3001\u8efd\u91cf\u304b\u3064\u4f7f\u3044\u3084\u3059\u3044\u30b3\u30f3\u30c6\u30ca\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u306e\u30c8\u30ec\u30fc\u30b9\u306b\u512a\u308c\u305f\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30c4\u30fc\u30eb\u3067\u3059\u3002Tracee \u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u4ed6\u306e\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30bb\u30b9\u3092\u9664\u5916\u3059\u308b\u3053\u3068\u306a\u304f\u30b3\u30f3\u30c6\u30ca\u5185\u3067\u306e\u307f\u751f\u6210\u3055\u308c\u305f\u30a4\u30d9\u30f3\u30c8\u3092\u30c8\u30ec\u30fc\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n

Tracee \u306f eBPF \u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002eBPF \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30e6\u30fc\u30b6\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u53ef\u89b3\u6e2c\u6027\u3092\u652f\u63f4\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f eBPF \u3068\u306f\u4f55\u304b\u3001\u305d\u308c\u3092\u4f7f\u7528\u3059\u308b\u7406\u7531\u53ca\u3073\u305d\u306e\u76ee\u7684\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u30c8\u30ec\u30fc\u30b9\u3059\u308b\u305f\u3081\u306b eBPF \u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u306e\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

Tracee \u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001Liz Rice \u304c\u516c\u958b\u3057\u305f\u3053\u306e\u30d6\u30ed\u30b0<\/a>\u6295\u7a3f\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002
\n\u203b\u65e5\u672c\u8a9e\u7ffb\u8a33\u306f\u30b3\u30c1\u30e9<\/a>\u3002<\/p>\n

\u305d\u308c\u3067\u306f eBPF \u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3066\u3053\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u7528\u9014\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n

eBPF \u3068\u306f<\/h3>\n

eBPF \u306f Extended Berkeley Packet Filter \u306e\u7565\u3067\u3059\u3002\u3053\u306e\u8a00\u8449\u304b\u3089\u5b9f\u969b\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u80fd\u529b\u3092\u3042\u307e\u308a\u8868\u73fe\u3057\u304d\u308c\u3066\u3044\u307e\u305b\u3093\u3002 Brendan Gregg \u306e\u8a00\u8449<\/a>\u306f\u3053\u308c\u3092\u7c21\u6f54\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n

\n

\u300ceBPF \u304c Linux \u3078\u884c\u3046\u3053\u3068\u306f\u3001JavaScript \u304c HTML \u306b\u5bfe\u3057\u3066\u884c\u3046\u3053\u3068\u306b\u7b49\u3057\u3044\u300d\u3002<\/i><\/p>\n<\/blockquote>\n

eBPF \u304a\u3088\u3073\u30c8\u30ec\u30fc\u30b9\u5168\u822c\u306b\u95a2\u3059\u308b\u5f7c\u306e\u7814\u7a76\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n

eBPF \u306f\u5143\u3005 BPF \u306e\u30a2\u30a4\u30c7\u30a2\u306b\u7531\u6765\u3057\u307e\u3059\u3002BPF\u306f\u6709\u7528\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u3092\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u76f4\u63a5\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u30d1\u30b1\u30c3\u30c8\u3092\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u306b\u30b3\u30d4\u30fc\u305b\u305a\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30c3\u30d7\u3092\u4ecb\u3057\u3066\u9001\u308a\u51fa\u3057\u307e\u3059\u3002<\/p>\n

\"\"<\/p>\n

BPF \u306e\u30a4\u30e1\u30fc\u30b8\u56f3https:\/\/www.tcpdump.org\/papers\/bpf-usenix93.pdf<\/a><\/i><\/center><\/p>\n

BPF \u306f\u4e0d\u8981\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9664\u5916\u3057\u76e3\u8996\u3055\u308c\u3066\u3044\u308b\u30d1\u30b1\u30c3\u30c8\u306e\u307f\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u4e0d\u8981\u306a\u30d1\u30b1\u30c3\u30c8\u3092\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306b\u30b3\u30d4\u30fc\u3057\u3066\u304b\u3089\u3075\u308b\u3044\u306b\u304b\u3051\u308b\u3088\u3046\u306a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u524a\u6e1b\u3057\u307e\u3059\u3002<\/p>\n

BPF \u306f\u3069\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u30ab\u30fc\u30cd\u30eb\u3067\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002eBPF \u306f\u3053\u306e\u6a5f\u80fd\u3092\u30d1\u30b1\u30c3\u30c8\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u4ee5\u4e0a\u306b\u5927\u5e45\u306b\u62e1\u5f35\u3057\u3001\u30ab\u30fc\u30cd\u30eb\u3067\u4efb\u610f\u306e eBPF \u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u306e\u5230\u7740\u3060\u3051\u3067\u306a\u304f\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u30a4\u30d9\u30f3\u30c8\u306b\u3088\u3063\u3066\u30c8\u30ea\u30ac\u30fc\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u300ckprobe\u300d\u30a4\u30d9\u30f3\u30c8\u306b\u30a2\u30bf\u30c3\u30c1\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30ab\u30fc\u30cd\u30eb\u95a2\u6570\u306e\u958b\u59cb\u6642\u306b eBPF \u30b3\u30fc\u30c9\u3092\u30c8\u30ea\u30ac\u30fc\u3067\u304d\u307e\u3059\u3002\u30ab\u30fc\u30cd\u30eb\u3067\u5b9f\u884c\u3055\u308c\u308b\u305f\u3081\u3001eBPF \u30b3\u30fc\u30c9\u306f\u975e\u5e38\u306b\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u767a\u63ee\u3057\u307e\u3059\u3002<\/p>\n

\u521d\u671f\u306e\u9803 eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u624b\u52d5\u3067\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u975e\u5e38\u306b\u9aa8\u306e\u6298\u308c\u308b\u4f5c\u696d\u3067\u3059\u3002\u5e78\u3044\u306a\u3053\u3068\u306b BCC(BPF Compiler Collection)\u306a\u3069\u306e\u30c4\u30fc\u30eb\u30ad\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001Go \u3084 Python \u306a\u3069\u306e\u30e2\u30c0\u30f3\u306a\u8a00\u8a9e\u3067 eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3053\u306e\u30d6\u30ed\u30b0\u306e\u5f8c\u534a\u3067\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u306a\u305c eBPF \u3092\u4f7f\u3046\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b<\/h3>\n

eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3055\u307e\u3056\u307e\u306a\u30a4\u30d9\u30f3\u30c8\u306b\u3088\u3063\u3066\u30c8\u30ea\u30ac\u30fc\u3067\u304d\u308b\u305f\u3081\u3001Tracee <\/a>\u306a\u3069\u306e eBPF \u30d9\u30fc\u30b9\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30b7\u30b9\u30c6\u30e0\u3067\u4f55\u304c\u8d77\u3053\u3063\u3066\u3044\u308b\u304b\u3092\u767a\u898b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u540c\u69d8\u306e\u3053\u3068\u3092\u884c\u3046\u65e2\u5b58\u306e\u30c4\u30fc\u30eb\u3068\u3057\u3066\u300cps\u300d\u30b3\u30de\u30f3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u30ad\u30e3\u30c3\u30c1\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u7c92\u5ea6\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u76e3\u8996\u30c4\u30fc\u30eb\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u9593\u9694\u3088\u308a\u3082\u5b9f\u884c\u6642\u9593\u304c\u77ed\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u691c\u51fa\u3055\u308c\u307e\u305b\u3093\u3002eBPF \u30b3\u30fc\u30c9\u306f\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30d9\u30fc\u30b9\u3067\u306f\u306a\u304f\u30a4\u30d9\u30f3\u30c8\u30c8\u30ea\u30ac\u30fc\u3067\u3042\u308a\u3001\u30ab\u30fc\u30cd\u30eb\u3067\u975e\u5e38\u306b\u9ad8\u901f\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001eBPF \u30d9\u30fc\u30b9\u306e\u53ef\u89b3\u6e2c\u30c4\u30fc\u30eb\u306f\u5f93\u6765\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u624b\u6bb5\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u6b63\u78ba\u3067\u3059\u3002<\/p>\n

eBPF \u306e\u5f37\u307f\u306e\u4f8b\u306f\u91cd\u8981\u306a\u30b7\u30b9\u30c6\u30e0\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u66f8\u304d\u8fbc\u307f\u306a\u3069\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7570\u5e38\u306a\u52d5\u4f5c\u3092\u8b58\u5225\u3059\u308b\u3053\u3068\u306b\u3088\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306e\u76e3\u8996\u3067\u3059\u3002eBPF \u30b3\u30fc\u30c9\u306f\u30d5\u30a1\u30a4\u30eb\u30a4\u30d9\u30f3\u30c8\u306b\u5fdc\u3058\u3066\u5b9f\u884c\u3055\u308c\u3001\u671f\u5f85\u3055\u308c\u305f\u52d5\u4f5c\u304b\u5426\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

eBPF \u3067\u3067\u304d\u308b\u3053\u3068<\/h3>\n

\u3053\u306e\u30d6\u30ed\u30b0\u7528\u306b execve() \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u30c8\u30ec\u30fc\u30b9\u3059\u308b\u3053\u3068\u3067 eBPF \u306e\u6a5f\u80fd\u304c\u5206\u304b\u308b\u3088\u3046\u306a\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n

execve<\/i>() \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u53d6\u308d\u3046\u3068\u3059\u308b\u8a66\u307f\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u307e\u3059\u3002\u79c1\u304c\u66f8\u3044\u305f eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f execve() \u3092\u547c\u3073\u51fa\u3059\u3059\u3079\u3066\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u76e3\u8996\u3057\u3001\u305d\u308c\u3089\u306b\u3064\u3044\u3066\u5831\u544a\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u3066\u304b\u3089\u3001\u30b7\u30b9\u30c6\u30e0\u3067\u5b9f\u884c\u3055\u308c\u308b\u3059\u3079\u3066\u306e\u65b0\u3057\u3044\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n

execve<\/i>() \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u306e\u76e3\u8996\u306f\u3001\u4e88\u671f\u3057\u306a\u3044\u5b9f\u884c\u53ef\u80fd\u30d5\u30a1\u30a4\u30eb\u3092\u691c\u51fa\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u30b3\u30f3\u30c6\u30ca\u5185\u304b\u3089\u30b7\u30a7\u30eb\u3092\u751f\u6210\u3059\u308b execve<\/i>() \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u76e3\u8996\u3059\u308b\u3068\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u306f\u3001\u901a\u5e38\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306e\u3088\u3046\u306a\u77ed\u671f\u9593\u306e\u30b5\u30fc\u30d3\u30b9\u7528\u9014\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u306a\u30b7\u30a7\u30eb\u306e\u751f\u6210\u306f\u3001\u30b3\u30f3\u30c6\u30ca\u81ea\u8eab\u304c\u884c\u3046\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u653b\u6483\u8005\u304c\u30b7\u30b9\u30c6\u30e0\u3092\u4e57\u3063\u53d6\u308d\u3046\u3068\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u8ad6\u3088\u308a\u8a3c\u62e0<\/h3>\n

BPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u30ab\u30fc\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u3068\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u306e2\u3064\u306e\u90e8\u5206\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ab\u30fc\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u95a2\u9023\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3001\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u3067\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u30ab\u30fc\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u30a4\u30d9\u30f3\u30c8\u3092\u53d6\u5f97\u3057\u3001\u3055\u3089\u306b\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u305d\u308c\u3089\u3092\u89e3\u6790\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u4f8b\u3067\u306f\u6700\u521d\u306b\u30ab\u30fc\u30cd\u30eb\u30b9\u30da\u30fc\u30b9\u30b3\u30fc\u30c9\u3001\u30ab\u30fc\u30cd\u30eb\u5185\u3067\u306e\u5b9f\u884c\u65b9\u6cd5\u3001\u304a\u3088\u3073\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u306b\u30a4\u30d9\u30f3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u6b21\u306b\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u30b3\u30fc\u30c9\u3001\u53d7\u4fe1\u3057\u305f\u30a4\u30d9\u30f3\u30c8\u3092\u3069\u306e\u3088\u3046\u306b\u89e3\u6790\u3067\u304d\u308b\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u958b\u767a\u3092\u652f\u63f4\u3059\u308b\u305f\u3081\u306b\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f BCC \u306a\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u8003\u6848\u3057\u307e\u3057\u305f\u3002\u6b21\u306e\u3088\u3046\u306a\u3059\u3079\u3066\u306e execve \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\u305f\u3081\u306b\u3001BCC \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u767b\u9332\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\n

int syscall__execve(struct pt_regs *ctx,<\/span>
    const char __user *filename,<\/span>
    const char __user *const __user *__argv,<\/span>
    const char __user *const __user *__envp)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6b21\u306e\u95a2\u6570\u306f BCC \u306e\u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u884c\u3055\u308c\u308b\u30b3\u30de\u30f3\u30c9\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
bpf_get_current_comm(&data.comm, sizeof(data.comm));<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u307e\u305f\u30b3\u30de\u30f3\u30c9\u540d\u30fb\u30ea\u30bf\u30fc\u30f3\u30b3\u30fc\u30c9\u30fb\u89aa UID\u30fb\u30d7\u30ed\u30bb\u30b9 UID \u306a\u3069\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u8a73\u7d30\u3092\u3001\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u8aad\u307f\u53d6\u308c\u308bperf\u306e\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
BPF_PERF_OUTPUT(events);<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u540c\u69d8\u306b\u30e6\u30fc\u30b6\u30b9\u30da\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u3064\u3044\u3066\u306f\u3001 BCC \u7528\u306e Golang bindings<\/a>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002Go \u8a00\u8a9e\u74b0\u5883\u3092\u6e96\u5099\u3057\u3066 BCC \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
type <\/em><\/span>Snoopy<\/span> struct <\/em><\/span>{<\/span>
   m<\/span> *bpf.Module<\/span><\/span>
}<\/span><\/p>\n

func <\/em><\/span>main<\/span>() {<\/span>
   s := Snoopy<\/span>{<\/span>
      m: bpf.NewModule<\/span>(source<\/span>, []string<\/span>{}),<\/span>
   }<\/span>
   defer <\/em><\/span>s.m<\/span>.Close<\/span>()<\/span><\/p>\n

   if <\/em><\/span>err := s.LoadAndAttachProbes<\/span>(); err != nil {<\/span>
      log.Fatalf<\/span>(\"failed to load and attach probes:<\/span> %s\"<\/span>, err)<\/span>
   }<\/span>
}<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u3053\u306e\u30b3\u30fc\u30c9\u30b9\u30cb\u30da\u30c3\u30c8\u3067\u306f\u65b0\u3057\u3044\u69cb\u9020\u4f53\u3092\u4f5c\u6210\u3057\u3001bpf \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5185\u90e8\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3057\u307e\u3059\u3002\u30ab\u30fc\u30cd\u30eb\u3067\u5b9f\u884c\u3055\u308c\u308b BPF \u30b3\u30fc\u30c9\u3092\u4fdd\u6301\u3059\u308b source<\/i> \u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6e21\u3057\u307e\u3059\u3002\u6b21\u306b LoadAndAttachProbes<\/i>() \u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002probe \u306b\u3064\u3044\u3066\u5c11\u3057\u5b66\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n


\nProbe<\/b>
\n<\/span><\/p>\n