{"id":100138,"date":"2021-05-11T16:22:58","date_gmt":"2021-05-11T14:22:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/microsoft-podgotovil-realizacziyu-ebpf-dlya-windows"},"modified":"2021-05-11T16:22:58","modified_gmt":"2021-05-11T14:22:59","slug":"microsoft-podgotovil-realizacziyu-ebpf-dlya-windows","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/microsoft-podgotovil-realizacziyu-ebpf-dlya-windows","title":{"rendered":"Microsoft har f\u00f6rberett en implementation av eBPF f\u00f6r Windows","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Microsoft har publicerat en implementation av eBPF-subsystemet f\u00f6r Windows, vilket m\u00f6jligg\u00f6r k\u00f6rning av godtyckliga hanterare som fungerar p\u00e5 operativsystemets k\u00e4rnniv\u00e5. eBPF erbjuder en inbyggd tolk f\u00f6r bytekod i k\u00e4rnan, vilket ger m\u00f6jlighet att skapa laddningsbara n\u00e4tverksoperationstillst\u00e5nd fr\u00e5n anv\u00e4ndarutrymmet, kontrollera \u00e5tkomst och sp\u00e5ra systemets funktioner. eBPF ing\u00e5r i Linux-k\u00e4rnan fr\u00e5n version 3.18 och g\u00f6r det m\u00f6jligt att bearbeta inkommande\/utg\u00e5ende n\u00e4tverkspaket, omdirigera paket, hantera bandbredd, f\u00e5nga systemanrop, kontrollera \u00e5tkomst och utf\u00f6ra sp\u00e5rning. Tack vare anv\u00e4ndningen av JIT-kompilering \u00f6vers\u00e4tts bytekoden i realtid till maskininstruktioner och k\u00f6rs med prestanda som kompilerad kod. K\u00e4llkoden f\u00f6r eBPF f\u00f6r Windows \u00e4r \u00f6ppen under MIT-licensen. <\/p>\n

eBPF f\u00f6r Windows kan anv\u00e4ndas med redan existerande verktyg f\u00f6r att arbeta med eBPF och erbjuder en standardiserad API som anv\u00e4nds f\u00f6r eBPF-applikationer i Linux. Projektet g\u00f6r det m\u00f6jligt att kompilera C-kod till eBPF-bytekod med hj\u00e4lp av den inbyggda eBPF-kompilatorn baserad p\u00e5 Clang och k\u00f6ra redan skapade eBPF-hanterare f\u00f6r Linux ovanp\u00e5 Windows-k\u00e4rnan, vilket ger ett speciellt kompatibilitetslager och st\u00f6der det inbyggda API:t Libbpf f\u00f6r kompatibilitet med program som interagerar med eBPF-program. Det erbjuds \u00e4ven lager som tillhandah\u00e5ller Linux-liknande hookar f\u00f6r XDP (eXpress Data Path) och socket bind, som abstraherar \u00e5tkomst till Windows n\u00e4tverksstack och n\u00e4tverksdrivrutiner. Planerna inkluderar att tillhandah\u00e5lla fullst\u00e4ndig kompatibilitet p\u00e5 k\u00e4llkodsniv\u00e5 med typiska eBPF-hanterare f\u00f6r Linux.

\"Microsoft<\/center> <\/p>\n

En nyckelskillnad i implementationen av eBPF f\u00f6r Windows \u00e4r anv\u00e4ndningen av en alternativ verifierare f\u00f6r bytekod, som ursprungligen f\u00f6reslogs av anst\u00e4llda p\u00e5 VMware och forskare fr\u00e5n kanadensiska och israeliska universitet. Verifieraren k\u00f6rs i en separat isolerad process i anv\u00e4ndarutrymmet och anv\u00e4nds f\u00f6re utf\u00f6randet av BPF-program f\u00f6r att identifiera fel och blockera eventuell skadlig aktivitet. <\/p>\n

F\u00f6r verifiering i eBPF f\u00f6r Windows anv\u00e4nds en statisk analysmetod baserad p\u00e5 abstrakt tolkning (Abstract Interpretation), som j\u00e4mf\u00f6rt med eBPF-verifieraren f\u00f6r Linux visar en l\u00e4gre niv\u00e5 av falska positiva svar, st\u00f6djer cykelanalys och erbjuder god skalbarhet. Metoden tar h\u00e4nsyn till m\u00e5nga typiska utf\u00f6randem\u00f6nster, som erh\u00e5llits genom analys av befintliga eBPF-program. <\/p>\n

\u041f\u043e\u0441\u043b\u0435 \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0431\u0430\u0439\u0442\u043a\u043e\u0434 \u043f\u0435\u0440\u0435\u0434\u0430\u0451\u0442\u0441\u044f \u0432 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0439 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430, \u0438\u043b\u0438 \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 JIT-\u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0442\u043e\u0440 \u0441 \u043f\u043e\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 \u044f\u0434\u0440\u0430. \u0414\u043b\u044f \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 eBPF \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c HVCI (HyperVisor-enforced Code Integrity), \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0439 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u0437\u0430\u0449\u0438\u0442\u044b \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432 \u0432 \u044f\u0434\u0440\u0435 \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0438\u0435 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u043f\u043e \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438. \u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435\u043c HVCI \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u0435\u0440\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0438 \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0438\u0440\u0443\u0435\u043c\u044b\u0445 eBPF-\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u0438 \u043d\u0435\u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e \u0441 JIT (\u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432\u044b\u0431\u043e\u0440 — \u043b\u0438\u0431\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u043b\u0438\u0431\u043e \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0437\u0430\u0449\u0438\u0442\u0430).
\n
K\u00e4lla: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Microsoft \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b eBPF \u0434\u043b\u044f Windows, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0443\u044e \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0438\u0435 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b. eBPF \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u044b\u0439 \u0432 \u044f\u0434\u0440\u043e \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440 \u0431\u0430\u0439\u0442\u043a\u043e\u0434\u0430, \u0434\u0430\u044e\u0449\u0438\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c\u044b\u0435 \u0438\u0437 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439, \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u0438 \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u0441\u0438\u0441\u0442\u0435\u043c. eBPF \u0432\u043a\u043b\u044e\u0447\u0451\u043d \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u044b\u043f\u0443\u0441\u043a\u0430 3.18 \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0432\u0445\u043e\u0434\u044f\u0449\u0438\u0435\/\u0438\u0441\u0445\u043e\u0434\u044f\u0449\u0438\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":100139,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100138","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Microsoft har f\u00f6rberett en implementation av eBPF f\u00f6r Windows | ProHoster","description":"Microsoft har publicerat en implementation av eBPF-subsystemet f\u00f6r Windows, vilket m\u00f6jligg\u00f6r k\u00f6rning av godtyckliga handlare som arbetar p\u00e5 operativsystemets 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