{"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\/de\/blog\/dostupen-usb-raw-gadget-linux-modul-dlya-emulyaczii-usb-ustrojstv","title":{"rendered":"Der USB Raw Gadget ist verf\u00fcgbar, ein Linux-Modul zur Emulation von USB-Ger\u00e4ten.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Andrej Konovalov von Google entwickelt ein neues Modul <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/xairy\/raw-gadget\">USB Raw Gadget<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/kasan\/blob\/usb-fuzzer\/Documentation\/usb\/raw-gadget.rst\">wurde stabilisiert,<\/a><\/noindex> zum Emulieren von USB-Ger\u00e4ten im Benutzerspace. Befindet sich in der Pr\u00fcfung <noindex><a rel=\"nofollow\" href=\"https:\/\/patchwork.kernel.org\/cover\/11332295\/\">Antrag<\/a><\/noindex> auf die Aufnahme dieses Moduls in den Hauptbestand des Linux-Kernels. USB Raw Gadget wird bereits <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/syzkaller\/blob\/master\/docs\/linux\/external_fuzzing_usb.md\">angewendet<\/a><\/noindex> von Google zur Vereinfachung von Fuzzing-Tests des USB-Stacks im Kernel mithilfe von Werkzeugen entwickelt. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/syzkaller\">syzkaller<\/a><\/noindex>.<\/p>\n<p>Das Modul f\u00fcgt der Kernel-Subsystem  <noindex><a rel=\"nofollow\" href=\"http:\/\/www.linux-usb.org\/gadget\/\">USB Gadget<\/a><\/noindex> eine neue Programmierschnittstelle hinzu und wird als Alternative zu GadgetFS weiterentwickelt. Die Erstellung einer neuen API ist durch die Notwendigkeit bedingt, einen niedrigleveligen und direkten Zugang zur USB Gadget-Subsystem aus dem Benutzerspace zu erhalten, wodurch alle m\u00f6glichen USB-Anfragen bearbeitet werden k\u00f6nnen (GadgetFS bearbeitet einige Anfragen selbstst\u00e4ndig, ohne sie an den Benutzerspace weiterzuleiten). Die Verwaltung des USB Raw Gadget erfolgt \u00fcber das Ger\u00e4t \/dev\/raw-gadget, \u00e4hnlich wie bei \/dev\/gadget in GadgetFS, wobei jedoch eine Schnittstelle auf Basis von ioctl() verwendet wird, anstelle eines Pseudo-Dateisystems.<\/p>\n<p>Neben der direkten Bearbeitung aller USB-Anfragen durch einen Prozess im Benutzerspace zeichnet sich die neue Schnittstelle auch dadurch aus, dass sie die M\u00f6glichkeit bietet, beliebige Daten als Antwort auf eine USB-Anfrage zur\u00fcckzugeben (GadgetFS f\u00fchrt eine Validierung der USB-Deskriptoren durch und filtert bestimmte Antworten, was die Auffindung von Fehlern bei Fuzzing-Tests des USB-Stacks behindert). Raw Gadget erm\u00f6glicht auch die Auswahl eines bestimmten UDC (USB Device Controller) und Treiber zur Anbringung, w\u00e4hrend GadgetFS an das erste verf\u00fcgbare UDC angebracht wird. F\u00fcr verschiedene UDCs werden voraussagbare Namen vergeben <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/USB#Endpoint\">endpoint<\/a><\/noindex> um verschiedene Arten von Datenkan\u00e4len innerhalb eines Ger\u00e4ts zu unterscheiden.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52324\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&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":[],"tags":[],"class_list":["post-41690","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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,\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" 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