{"id":41897,"date":"2021-04-14T10:00:11","date_gmt":"2021-04-14T01:00:11","guid":{"rendered":"https:\/\/www.creationline.com\/?p=41897"},"modified":"2021-04-14T09:34:57","modified_gmt":"2021-04-14T00:34:57","slug":"vmlinux-h%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%e3%80%82%e3%81%aa%e3%81%9cebpf%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%81%ab%e3%81%a8%e3%81%a3%e3%81%a6%e9%87%8d%e8%a6%81%e3%81%aa%e3%81%ae","status":"publish","type":"post","link":"https:\/\/www.creationline.com\/tech-blog\/cloudnative\/aquasecurity\/41897","title":{"rendered":"vmlinux.h\u3068\u306f\u4f55\u304b\u3002\u306a\u305ceBPF\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u304b\u3002 #aqua #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #eBPF"},"content":{"rendered":"<p>\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672021\u5e743\u670830\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c<a href=\"https:\/\/blog.aquasec.com\/vmlinux.h-ebpf-programs\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"> What is vmlinux.h and Why is It Important for Your eBPF Programs? <\/a>\u300d\u306e\u65e5\u672c\u8a9e\u7ffb\u8a33\u3067\u3059\u3002<\/p>\n<p><center><img loading=\"lazy\" decoding=\"async\" src=\"\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/04\/0083c5bc7cf3d2c6b01d2d556181302a-1.png\" alt=\"\" width=\"864\" height=\"422\" class=\"alignnone size-full wp-image-41899\" srcset=\"https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/04\/0083c5bc7cf3d2c6b01d2d556181302a-1.png 864w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/04\/0083c5bc7cf3d2c6b01d2d556181302a-1-360x176.png 360w, https:\/\/www.creationline.com\/tech-blog\/cms_x3GWkuX\/wp-content\/uploads\/2021\/04\/0083c5bc7cf3d2c6b01d2d556181302a-1-768x375.png 768w\" sizes=\"auto, (max-width: 864px) 100vw, 864px\" \/><\/center><\/p>\n<h2>vmlinux.h\u3068\u306f\u4f55\u304b\u3002\u306a\u305ceBPF\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u304b\u3002<\/h2>\n<hr \/>\n<p>eBPF \u306f\u3001\u958b\u767a\u8005\u304c Linux \u30ab\u30fc\u30cd\u30eb\u306e\u6226\u7565\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u306b\u30ab\u30b9\u30bf\u30e0\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3001\u7c21\u5358\u306a C \u8a00\u8a9e\u3084 Go \u8a00\u8a9e\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u3053\u3068\u3067\u30ab\u30fc\u30cd\u30eb\u3068\u306e\u3084\u308a\u3068\u308a\u304c\u3067\u304d\u308b\u3001\u5f37\u529b\u304b\u3064\u8208\u5473\u6df1\u3044\u6280\u8853\u3067\u3059\u3002\u958b\u767a\u8005\u304c\u66f8\u3044\u3066\u5b9f\u884c\u3057\u305f eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u30a2\u30bf\u30c3\u30c1\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u306e\u30e1\u30e2\u30ea\u5185\u306e\u30c7\u30fc\u30bf\u3092\u691c\u67fb\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u305f\u3081\u306b\u306f eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u3069\u306e\u3088\u3046\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u6271\u3063\u3066\u3044\u308b\u304b\u3092\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u6b21\u306e1\u884c\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u308c\u306f\u3001\u300c#include \"vmlinux.h\"\u300d\u3067\u3059\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001vmlinux.h \u3068\u306f\u4f55\u304b\u3001\u306a\u305c eBPF \u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u3068\u304d\u306b vmlinux.h \u3092\u4f7f\u3046\u3079\u304d\u306a\u306e\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>vmlinux.h\u306e\u7c21\u5358\u306a\u8aac\u660e<\/h3>\n<p>vmlinux.h \u306f\u751f\u6210\u3055\u308c\u305f\u30b3\u30fc\u30c9\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u5b9f\u884c\u4e2d\u306e Linux \u30ab\u30fc\u30cd\u30eb\u304c\u81ea\u8eab\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3067\u4f7f\u7528\u3059\u308b\u3059\u3079\u3066\u306e\u578b\u5b9a\u7fa9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002Linux \u3092\u30d3\u30eb\u30c9\u3057\u305f\u3068\u304d\u306e\u6210\u679c\u7269\u306e1\u3064\u304c\u3001 vmlinux \u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002\u3053\u308c\u306f\u3001\u4e3b\u8981\u306a\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u666e\u901a\u306f\u542b\u307e\u308c\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u8d77\u52d5\u53ef\u80fd\u306a\u30ab\u30fc\u30cd\u30eb\u3092\u5185\u90e8\u306b\u542b\u3080 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Executable_and_Linkable_Format\" rel=\"noopener noreferrer\" target=\"_blank\">ELF<\/a> \u30d0\u30a4\u30ca\u30ea\u3067\u3059\u3002<\/p>\n<p>Linux \u30ea\u30dd\u30b8\u30c8\u30ea\u306e mainline \u306b\u306f\u3001bpftool \u3068\u3044\u3046\u540d\u524d\u306e\u30c4\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30c4\u30fc\u30eb\u306f\u3001vmlinux \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3093\u3067\u3001vmlinux.h \u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3059\u308b\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002vmlinux.h \u30d5\u30a1\u30a4\u30eb\u306b\u306f\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u30ab\u30fc\u30cd\u30eb\u304c\u4f7f\u7528\u3059\u308b\u3059\u3079\u3066\u306e\u578b\u5b9a\u7fa9\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u5927\u304d\u306a\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>The actual command is:&nbsp;<br \/><span style=\"font-family: 'courier new', courier; font-size: 18px; background-color: #eeeeee;\">bpftool btf dump file \/sys\/kernel\/btf\/vmlinux format c &gt; vmlinux.h<\/span><\/p>\n<p>\u3053\u306e\u30d8\u30c3\u30c0\u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u3068\u3001bpf \u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u30e1\u30e2\u30ea\u3092\u8aad\u307f\u3068\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3069\u306e\u30d0\u30a4\u30c8\u304c\u69cb\u9020\u4f53\u306e\u3069\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001linux \u3067\u306f\u30d7\u30ed\u30bb\u30b9\u306e\u6982\u5ff5\u3092 <a href=\"https:\/\/elixir.bootlin.com\/linux\/latest\/source\/include\/linux\/sched.h#L649\" rel=\"noopener noreferrer\" target=\"_blank\">task_struct<\/a> \u3068\u3044\u3046\u578b\u3067\u8868\u73fe\u3057\u3066\u3044\u307e\u3059\u3002bpf \u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089 task_struct \u306e\u5024\u3092\u691c\u67fb\u3057\u305f\u3044\u5834\u5408\u3001\u305d\u306e\u5b9a\u7fa9\u3092\u77e5\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><center><img decoding=\"async\" src=\"https:\/\/blog.aquasec.com\/hs-fs\/hubfs\/vmlinux%20diagram-01.jpg?width=850&name=vmlinux%20diagram-01.jpg\" alt=\"\" \/><\/center><\/p>\n<h3>\u4e00\u5ea6\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u3067\u3069\u3053\u3067\u3082\u5b9f\u884c\u53ef\u80fd<\/h3>\n<p>vmlinux.h \u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u751f\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7570\u306a\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30ab\u30fc\u30cd\u30eb\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u5225\u30de\u30b7\u30f3\u3067\u306f\u3001\u518d\u30b3\u30f3\u30d1\u30a4\u30eb\u305b\u305a\u306b bpf \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u58ca\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001linux \u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u4e2d\u3067\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u3054\u3068\u306b\u5185\u90e8\u69cb\u9020\u4f53\u306e\u5b9a\u7fa9\u304c\u5909\u308f\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001libbpf \u3092\u4f7f\u3046\u3068\u3001\u4e00\u5ea6\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u3067\u3069\u3053\u3067\u3082\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002libbpf \u306b\u306f BPF_CORE_READ \u306a\u3069\u306e\u30de\u30af\u30ed\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\u3001vmlinux.h \u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u578b\u306e\u4e2d\u306e\u3069\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u304b\u3092\u5206\u6790\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u81ea\u5206\u306e\u30ab\u30fc\u30cd\u30eb\u304b\u3089\u751f\u6210\u3057\u305f vmlinux.h \u30d5\u30a1\u30a4\u30eb\u3067 bpf \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u3001\u5225\u306e\u30ab\u30fc\u30cd\u30eb\u3067\u5b9f\u884c\u3057\u3066\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<hr \/>\n<p>\u3059\u3079\u3066\u306e Linux \u30ab\u30fc\u30cd\u30eb\u30bf\u30a4\u30d7\u3092\u542b\u3080\u72ec\u81ea\u306e vmlinux.h \u30d8\u30c3\u30c0\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3067\u3001eBPF \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u969b\u306b\u30ab\u30fc\u30cd\u30eb\u30d8\u30c3\u30c0\u3078\u306e\u4f9d\u5b58\u3092\u306a\u304f\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001vmlinux.h \u306e\u5229\u4fbf\u6027\u3001libbpf \u306e\u67d4\u8edf\u6027\u3001Go \u8a00\u8a9e\u306e\u5b89\u5168\u6027\u306e\u4e21\u65b9\u3092\u6d3b\u7528\u3057\u305f bpf \u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u66f8\u304d\u65b9\u3092\u7d39\u4ecb\u3059\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/p>\n<p><center>\n\t\t<!--HubSpot Call-to-Action Code -->\n\t\t<span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-fecc193b-bbc5-40d2-9588-ed7b022af3aa\">\n\t\t<span class=\"hs-cta-node hs-cta-fecc193b-bbc5-40d2-9588-ed7b022af3aa\" id=\"fecc193b-bbc5-40d2-9588-ed7b022af3aa\">\n\t\t<!--[if lte IE 8]>\n\t\t<div id=\"hs-cta-ie-element\"><\/div>\n\t\t<![endif]-->\n\t\t<a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/6168413\/fecc193b-bbc5-40d2-9588-ed7b022af3aa\" >\n\t\t<img decoding=\"async\" class=\"hs-cta-img\" id=\"hs-cta-img-fecc193b-bbc5-40d2-9588-ed7b022af3aa\" style=\"border-width:0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/6168413\/fecc193b-bbc5-40d2-9588-ed7b022af3aa.png\"  alt=\"New call-to-action\"\/>\n\t\t<\/a>\n\t\t<\/span>\n\t\t<script charset=\"utf-8\" src=\"\/\/js.hubspot.com\/cta\/current.js\"><\/script>\n\t\t<script>\n\t\thbspt.cta.load(6168413, 'fecc193b-bbc5-40d2-9588-ed7b022af3aa', {});\n\t\t<\/script>\n\t\t<\/span>\n\t\t<!-- end HubSpot Call-to-Action Code -->\n\t\t<\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua Security\u300d\u793e\u306e\u6280\u8853\u30d6\u30ed\u30b0\u30672021\u5e743\u670830\u65e5\u306b\u516c\u958b\u3055\u308c\u305f\u300c What is vmlinux.h and Why is It Important for Your eBPF Programs [&#8230;]<\/p>\n","protected":false},"author":56,"featured_media":41898,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[176],"tags":[174,152,494,358],"class_list":["post-41897","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aquasecurity","tag-aqua","tag-aquasecurity","tag-ebpf","tag-358"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>vmlinux.h\u3068\u306f\u4f55\u304b\u3002\u306a\u305ceBPF\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u306e\u304b\u3002 #aqua #\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 #eBPF - Tech Blog\uff5c\u30af\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30f3<\/title>\n<meta name=\"description\" content=\"AquaSecurity |\u672c\u30d6\u30ed\u30b0\u306f\u300cAqua 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