{"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\/pt\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","title":{"rendered":"Est\u00e1 dispon\u00edvel o USB Raw Gadget, um m\u00f3dulo Linux para emula\u00e7\u00e3o de dispositivos USB","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Andrei Konovalov da Google est\u00e1 desenvolvendo um novo m\u00f3dulo USB Raw Gadget<\/a><\/noindex>, permitindo<\/a><\/noindex> emular dispositivos USB no espa\u00e7o do usu\u00e1rio. Est\u00e1 em revis\u00e3o pedido<\/a><\/noindex> para inclus\u00e3o deste m\u00f3dulo no n\u00facleo principal do Linux. O USB Raw Gadget j\u00e1 \u00e9 aplicada<\/a><\/noindex> foi utilizado na Google para simplificar os testes de fuzzing da pilha USB do n\u00facleo atrav\u00e9s de ferramentas syzkaller<\/a><\/noindex>.<\/p>\n

O m\u00f3dulo adiciona uma nova interface de programa\u00e7\u00e3o \u00e0 subsistema do n\u00facleo USB Gadget<\/a><\/noindex> e \u00e9 desenvolvido como uma alternativa ao GadgetFS. A cria\u00e7\u00e3o de uma nova API se deve \u00e0 necessidade de acesso de baixo n\u00edvel e direto ao subsistema USB Gadget do espa\u00e7o do usu\u00e1rio, permitindo o processamento de todas as poss\u00edveis solicita\u00e7\u00f5es USB (o GadgetFS processa algumas solicita\u00e7\u00f5es por conta pr\u00f3pria, n\u00e3o as passando para o espa\u00e7o do usu\u00e1rio). O controle do USB Raw Gadget \u00e9 feito atrav\u00e9s do dispositivo \/dev\/raw-gadget, assim como em \/dev\/gadget no GadgetFS, mas para intera\u00e7\u00e3o utiliza-se uma interface baseada em ioctl(), em vez de um sistema de arquivos pseudo.<\/p>\n

Al\u00e9m do processamento direto de todas as solicita\u00e7\u00f5es USB pelo processo no espa\u00e7o do usu\u00e1rio, a nova interface tamb\u00e9m se destaca pela capacidade de retornar qualquer dado em resposta a uma solicita\u00e7\u00e3o USB (o GadgetFS realiza a verifica\u00e7\u00e3o da validade dos descritores USB e filtra certas respostas, o que dificulta a identifica\u00e7\u00e3o de erros nos testes de fuzzing da pilha USB). O Raw Gadget tamb\u00e9m permite a sele\u00e7\u00e3o de um dispositivo UDC (Controlador de Dispositivo USB) espec\u00edfico e driver para anexar, enquanto o GadgetFS se conecta ao primeiro dispositivo UDC dispon\u00edvel. Para diferentes UDC, nomes predefinidos s\u00e3o atribu\u00eddos endpoint<\/a><\/noindex> para diferenciar os diferentes tipos de canais de troca de dados dentro de um dispositivo.<\/p>\n

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

Fonte: 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\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\udd47Est\u00e1 dispon\u00edvel o USB Raw Gadget, um m\u00f3dulo Linux para emula\u00e7\u00e3o de dispositivos USB | ProHoster","description":"Andrei Konovalov da Google est\u00e1 desenvolvendo um novo m\u00f3dulo USB Raw Gadget,","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d USB Raw Gadget, Linux-\u043c\u043e\u0434\u0443\u043b\u044c \u0434\u043b\u044f \u044d\u043c\u0443\u043b\u044f\u0446\u0438\u0438 USB-\u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 | ProHoster","og:description":"\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,","og:url":"https:\/\/prohoster.info\/pt\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-02-14T05:42:48+00:00","article:modified_time":"2020-02-14T05:42:48+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"41690","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 00:12:23","updated":"2022-09-28 07:30:46","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/41690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/comments?post=41690"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/posts\/41690\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/media?parent=41690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/categories?post=41690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/pt\/wp-json\/wp\/v2\/tags?post=41690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}