{"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\/it\/blog\/news\/predstavlena-biblioteka-aya-dlya-sozdaniya-ebpf-obrabotchikov-na-yazyke-rust","title":{"rendered":"Presentata la libreria Aya per la creazione di gestori eBPF in linguaggio Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stato presentato il primo rilascio della libreria Aya, che consente di creare gestori eBPF in linguaggio Rust, eseguibili all'interno del kernel Linux in una macchina virtuale con JIT. A differenza di altri strumenti per lo sviluppo di programmi eBPF, Aya non utilizza libbpf e il compilatore bcc, ma offre una propria implementazione scritta in Rust, che utilizza il pacchetto crate libc per un accesso diretto alle chiamate di sistema del kernel. Non \u00e8 necessario disporre di strumenti per il linguaggio C e file di intestazione del kernel per compilare Aya. Il codice della libreria \u00e8 distribuito sotto licenze MIT e Apache 2.0.    <\/p>\n<p>Caratteristiche principali:  <\/p>\n<ul>\n<li class=\"l\"> Supporto per il formato BTF (BPF Type Format), che fornisce informazioni sui tipi in pseudocodice BPF per la verifica dei tipi e il confronto con i tipi forniti dall'attuale kernel. L'uso di BTF consente di creare gestori eBPF universali, utilizzabili senza ricompilazione con diverse versioni del kernel Linux.\n<li class=\"l\"> Supporto per chiamate &#171;bpf-to-bpf&#187;, variabili globali e inizializzatori, che consente di scrivere programmi per eBPF in modo simile ai normali programmi, utilizzando aya come runtime, sovrascrivendo le funzioni tenendo conto del funzionamento in eBPF.\n<li class=\"l\"> Supporto per vari tipi di kernel, inclusi array normali, hash (hash map), stack, code, tracciamento dello stack, oltre a strutture per socket e monitoraggio delle prestazioni.\n<li class=\"l\"> Possibilit\u00e0 di creare vari tipi di programmi eBTF, inclusi programmi per filtrare e gestire il traffico, gestori cgroup e varie operazioni con socket, programmi XDP.\n<li class=\"l\"> Supporto per piattaforme di elaborazione asincrona delle richieste in modalit\u00e0 non bloccante tokio e async-std.\n<li class=\"l\"> Compilazione rapida, senza necessit\u00e0 di legami con la compilazione del kernel e i file di intestazione del kernel.    <\/ul>\n<p>Il progetto \u00e8 attualmente considerato sperimentale &#8212; l'API non \u00e8 ancora stabilizzata e continua a svilupparsi. Inoltre, non tutte le funzionalit\u00e0 previste sono ancora implementate. Entro la fine dell'anno, gli sviluppatori si aspettano di portare le funzionalit\u00e0 di Aya a un parit\u00e0 con libbpf e a gennaio 2022 di rilasciare la prima versione stabile. Si prevede inoltre di unire le parti di Aya necessarie per scrivere codice in Rust per il kernel Linux con i componenti che operano nello spazio utente e utilizzati per il caricamento, l'allegamento e l'interazione con i programmi eBPF.   <\/p>\n<p>Ricordiamo che eBPF \u00e8 un interprete di bytecode integrato nel kernel Linux, che consente di creare gestori per operazioni di rete, monitorare il funzionamento dei sistemi, intercepire le chiamate di sistema, controllare l'accesso, gestire eventi mantenendo la registrazione temporale, contare la frequenza e il tempo di esecuzione delle operazioni, eseguire il tracciamento utilizzando kprobes\/uprobes\/tracepoints. Grazie all'uso della compilazione JIT, il bytecode viene tradotto dinamicamente in istruzioni per la macchina ed eseguito con la performance del codice nativo. XDP fornisce strumenti per eseguire programmi BPF a livello del driver di rete, con la possibilit\u00e0 di accesso diretto al buffer DMA dei pacchetti, consentendo la creazione di gestori ad alte prestazioni per operare in condizioni di elevato carico di rete.<br \/>\n<br \/>Fonte: <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 5.0.2 - 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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