{"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\/fr\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","title":{"rendered":"Le module USB Raw Gadget est disponible, un module Linux pour simuler des p\u00e9riph\u00e9riques USB","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Andrei Konovalov de Google d\u00e9veloppe un nouveau module USB Raw Gadget<\/a><\/noindex>, permettant<\/a><\/noindex> pour \u00e9muler des p\u00e9riph\u00e9riques USB dans l'espace utilisateur. En cours d'examen demande<\/a><\/noindex> d'inclure ce module dans le noyau Linux. USB Raw Gadget est d\u00e9j\u00e0 utilisons<\/a><\/noindex> utilis\u00e9 chez Google pour simplifier les tests de fuzzing de la pile USB du noyau \u00e0 l'aide d'outils syzkaller<\/a><\/noindex>.<\/p>\n

Le module ajoute une nouvelle interface de programmation dans la sous-syst\u00e8me du noyau USB Gadget<\/a><\/noindex> et se d\u00e9veloppe comme une alternative \u00e0 GadgetFS. La cr\u00e9ation de cette nouvelle API est justifi\u00e9e par la n\u00e9cessit\u00e9 d'obtenir un acc\u00e8s bas niveau direct \u00e0 la sous-syst\u00e8me USB Gadget depuis l'espace utilisateur, permettant de traiter toutes les requ\u00eates USB possibles (GadgetFS traite certaines requ\u00eates par lui-m\u00eame, sans les transmettre \u00e0 l'espace utilisateur). La gestion de USB Raw Gadget se fait via le p\u00e9riph\u00e9rique \/dev\/raw-gadget, similaire \u00e0 \/dev\/gadget dans GadgetFS, mais pour l'interaction, une interface bas\u00e9e sur ioctl() est utilis\u00e9e, pas un pseudo-syst\u00e8me de fichiers.<\/p>\n

Outre le traitement direct de toutes les requ\u00eates USB par un processus dans l'espace utilisateur, la nouvelle interface se distingue \u00e9galement par la capacit\u00e9 de renvoyer n'importe quelles donn\u00e9es en r\u00e9ponse \u00e0 une requ\u00eate USB (GadgetFS effectue une v\u00e9rification de la validit\u00e9 des descripteurs USB et filtre certaines r\u00e9ponses, ce qui entrave la d\u00e9tection d'erreurs lors des tests de fuzzing de la pile USB). Raw Gadget permet \u00e9galement de choisir un contr\u00f4leur de p\u00e9riph\u00e9rique USB (UDC) sp\u00e9cifique et un pilote \u00e0 attacher, tandis que GadgetFS se fixe au premier UDC disponible. Des noms pr\u00e9visibles sont attribu\u00e9s aux diff\u00e9rents UDC endpoint<\/a><\/noindex> pour s\u00e9parer les diff\u00e9rents types de canaux de communication au sein d'un m\u00eame p\u00e9riph\u00e9rique.<\/p>\n

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

Source : opennet.ru<\/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\udd47Disponible : USB Raw Gadget, module Linux pour l'\u00e9mulation de p\u00e9riph\u00e9riques USB | ProHoster","description":"Andrei Konovalov de Google d\u00e9veloppe le nouveau module USB Raw 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