{"id":100527,"date":"2021-06-16T16:22:37","date_gmt":"2021-06-16T14:22:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlena-biblioteka-aya-dlya-sozdaniya-ebpf-obrabotchikov-na-yazyke-rust"},"modified":"2021-06-16T16:22:37","modified_gmt":"2021-06-16T14:22:37","slug":"predstavlena-biblioteka-aya-dlya-sozdaniya-ebpf-obrabotchikov-na-yazyke-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/predstavlena-biblioteka-aya-dlya-sozdaniya-ebpf-obrabotchikov-na-yazyke-rust","title":{"rendered":"Biblioteket Aya har presenterats f\u00f6r att skapa eBPF-handlers i spr\u00e5ket Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Den f\u00f6rsta versionen av Aya-biblioteket har presenterats, vilket m\u00f6jligg\u00f6r skapande av eBPF-handlers p\u00e5 Rust-spr\u00e5ket som k\u00f6rs inuti Linux-k\u00e4rnan i en speciell virtuell maskin med JIT. Till skillnad fr\u00e5n andra verktyg f\u00f6r utveckling av eBPF-program anv\u00e4nder Aya inte libbpf eller bcc-kompilatorn, utan erbjuder en egen implementation, skriven i Rust, som anv\u00e4nder crate-paketet libc f\u00f6r att direkt anropa k\u00e4rnans systemanrop. F\u00f6r att bygga Aya kr\u00e4vs ingen C-kompilator eller k\u00e4rnans header-filer.    <\/p>\n<p>Key features:  <\/p>\n<ul>\n<li class=\"l\"> St\u00f6d f\u00f6r BTF-formatet (BPF Type Format), som tillhandah\u00e5ller typinformation i BPF-pseudokod f\u00f6r typkontroll och matchning med de typer som tillhandah\u00e5lls av den aktuella k\u00e4rnan. Anv\u00e4ndningen av BTF m\u00f6jligg\u00f6r skapandet av universella eBPF-handlers som kan anv\u00e4ndas utan omkompilering med olika versioner av Linux-k\u00e4rnan.\n<li class=\"l\"> St\u00f6d f\u00f6r anrop av &#171;bpf-to-bpf&#187;, globala variabler och initialiserare, vilket m\u00f6jligg\u00f6r att utforma program f\u00f6r eBPF p\u00e5 samma s\u00e4tt som vanliga program som anv\u00e4nder aya som runtime, med omdefinition av funktioner med h\u00e4nsyn till arbetet i eBPF.\n<li class=\"l\"> St\u00f6d f\u00f6r olika k\u00e4rntyper, inklusive vanliga arrayer, hashkartor, stackar, k\u00f6er, stacksp\u00e5rning, samt strukturer f\u00f6r sockets och prestanda\u00f6vervakning.\n<li class=\"l\"> M\u00f6jlighet att skapa olika typer av eBTF-program, inklusive program f\u00f6r filtrering och trafikhantering, cgroup-handlers och olika operationer med sockets, samt XDP-program.\n<li class=\"l\"> St\u00f6d f\u00f6r plattformar f\u00f6r asynkron bearbetning av f\u00f6rfr\u00e5gningar i icke-blockerande s\u00e4tt med tokio och async-std.\n<li class=\"l\"> Snabb byggnation, oberoende av k\u00e4rnbyggnad och k\u00e4rnans header-filer.    <\/ul>\n<p>Projektet betraktas fortfarande som experimentellt &#8212; API:et \u00e4r \u00e4nnu inte stabiliserat och forts\u00e4tter att utvecklas. Inte alla planerade funktioner har heller implementerats. Inom \u00e5ret r\u00e4knar utvecklarna med att n\u00e5 funktionalitet som \u00e4r likv\u00e4rdig med libbpf, och i januari 2022 avser man att lansera den f\u00f6rsta stabila versionen. Det planeras ocks\u00e5 att sammanf\u00f6ra delar av Aya som \u00e4r n\u00f6dv\u00e4ndiga f\u00f6r att skriva kod i Rust f\u00f6r Linux-k\u00e4rnan med komponenter som k\u00f6rs i anv\u00e4ndarutrymmet och anv\u00e4nds f\u00f6r att ladda, f\u00e4sta och interagera med eBPF-program.   <\/p>\n<p>Vi p\u00e5minner om att eBPF \u00e4r en inbyggd tolk f\u00f6r bytekod i Linux-k\u00e4rnan som g\u00f6r det m\u00f6jligt att skapa hanterare f\u00f6r n\u00e4tverksoperationer, \u00f6vervaka systemets arbete, f\u00e5nga systemanrop, kontrollera \u00e5tkomst, bearbeta h\u00e4ndelser med tidsst\u00e4mpling, r\u00e4kna frekvens och exekveringstid, samt utf\u00f6ra sp\u00e5rning med hj\u00e4lp av kprobes\/uprobes\/tracepoints. Tack vare anv\u00e4ndningen av JIT-kompilering \u00f6vers\u00e4tts bytekoden i realtid till maskininstruktioner och utf\u00f6rs med prestanda som \u00e4r j\u00e4mf\u00f6rbar med den f\u00f6r nativ kod. XDP erbjuder verktyg f\u00f6r att k\u00f6ra BPF-program p\u00e5 niv\u00e5 med n\u00e4tverksdrivrutinen, med m\u00f6jlighet till direkt \u00e5tkomst till DMA-paketbuffertar, vilket m\u00f6jligg\u00f6r skapande av h\u00f6gpresterande hanterare som fungerar under h\u00f6g n\u00e4tverksbelastning.<br \/>\n<br \/>K\u00e4lla: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55340\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Aya, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 eBPF, \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c\u044b\u0435 \u0432\u043d\u0443\u0442\u0440\u0438 \u044f\u0434\u0440\u0430 Linux \u0432 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u043c\u0430\u0448\u0438\u043d\u0435 \u0441 JIT. \u0412 \u043e\u0442\u043b\u0438\u0447\u0438\u0435 \u043e\u0442 \u0434\u0440\u0443\u0433\u0438\u0445 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 eBPF-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c, Aya \u043d\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 libbpf \u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 bcc, \u0430 \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u0442 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u0443\u044e \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u0443\u044e \u043d\u0430 Rust, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 crate-\u043f\u0430\u043a\u0435\u0442 libc \u0434\u043b\u044f \u043f\u0440\u044f\u043c\u043e\u0433\u043e \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u043a \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u043c \u0432\u044b\u0437\u043e\u0432\u0430\u043c \u044f\u0434\u0440\u0430. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100527","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 Aya, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 eBPF, 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