{"id":41690,"date":"2020-02-14T08:42:48","date_gmt":"2020-02-14T05:42:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv"},"modified":"2020-02-14T08:42:48","modified_gmt":"2020-02-14T05:42:48","slug":"dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","title":{"rendered":"USB Raw Gadget este disponibil, un modul Linux pentru emularea dispozitivelor USB","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Andrei Konovalov de la Google dezvolt\u0103 un nou modul USB Raw Gadget<\/a><\/noindex>, permi\u021b\u00e2nd<\/a><\/noindex> emuleaz\u0103 dispozitive USB \u00een spa\u021biul utilizatorului. Este \u00een curs de examinare cerere<\/a><\/noindex> pentru includerea acestui modul \u00een kernelul principal Linux. USB Raw Gadget este deja folosim<\/a><\/noindex> \u00een cadrul Google pentru simplificarea test\u0103rii fuzzing a stivei USB a kernelului cu ajutorul instrumentelor syzkaller<\/a><\/noindex>.<\/p>\n

Modulul adaug\u0103 o nou\u0103 interfa\u021b\u0103 programatic\u0103 \u00een subsistemul kernelului USB Gadget<\/a><\/noindex> \u0219i se dezvolt\u0103 ca alternativ\u0103 la GadgetFS. Crearea unei noi API este determinat\u0103 de necesitatea de a ob\u021bine acces de nivel sc\u0103zut \u0219i direct la subsistemul USB Gadget din spa\u021biul utilizatorului, permi\u021b\u00e2nd procesarea tuturor cererilor USB posibile (GadgetFS proceseaz\u0103 unele cereri de sine st\u0103t\u0103tor, f\u0103r\u0103 a le transmite \u00een spa\u021biul utilizatorului). Managementul USB Raw Gadget se face prin dispozitivul \/dev\/raw-gadget, similar cu \/dev\/gadget \u00een GadgetFS, dar pentru interac\u021biune se folose\u0219te o interfa\u021b\u0103 bazat\u0103 pe ioctl(), nu un FS pseudo.<\/p>\n

Pe l\u00e2ng\u0103 procesarea direct\u0103 a tuturor cererilor USB de c\u0103tre un proces din spa\u021biul utilizatorului, noua interfa\u021b\u0103 se distinge \u0219i prin posibilitatea de a returna orice date \u00een r\u0103spuns la o cerere USB (GadgetFS efectueaz\u0103 verificarea corectitudinii descriptorilor USB \u0219i filtreaz\u0103 anumite r\u0103spunsuri, ceea ce \u00eempiedic\u0103 identificarea erorilor \u00een timpul test\u0103rii fuzzing a stivei USB). Raw Gadget permite, de asemenea, alegerea unui anumit dispozitiv UDC (Controler de Dispozitive USB) \u0219i a unui driver pentru ata\u0219are, \u00een timp ce GadgetFS se ata\u0219eaz\u0103 la primul dispozitiv UDC disponibil. Numele previzibile sunt atribuite diferitelor UDC endpoint<\/a><\/noindex> pentru a separa diferitele tipuri de canale de schimb de date \u00een cadrul unui singur dispozitiv.<\/p>\n

<\/a><\/noindex><\/p>\n

Sursa: opennet.ro<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0410\u043d\u0434\u0440\u0435\u0439 \u041a\u043e\u043d\u043e\u0432\u0430\u043b\u043e\u0432 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u043d\u043e\u0432\u044b\u0439 \u043c\u043e\u0434\u0443\u043b\u044c USB Raw Gadget, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u044d\u043c\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c USB-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430 \u0432 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u041d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d\u0438\u0438 \u0437\u0430\u044f\u0432\u043a\u0430 \u043d\u0430 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043c\u043e\u0434\u0443\u043b\u044f \u0432 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux. USB Raw Gadget \u0443\u0436\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u0434\u043b\u044f \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u0438\u044f fuzzing-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f USB-\u0441\u0442\u0435\u043a\u0430 \u044f\u0434\u0440\u0430 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f syzkaller. \u041c\u043e\u0434\u0443\u043b\u044c \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u0442 \u043d\u043e\u0432\u044b\u0439 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u0432 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u044f\u0434\u0440\u0430 […]<\/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":[],"tags":[],"class_list":["post-41690","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47USB Raw Gadget este disponibil, un modul Linux pentru emularea dispozitivelor USB | ProHoster","description":"Andrei Konovalov de la Google dezvolt\u0103 un nou modul USB Raw 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