{"id":90687,"date":"2020-08-04T13:42:33","date_gmt":"2020-08-04T11:42:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predlozhenie-po-blokirovke-drajverov-prosloek-predostavlyayushhih-dostup-k-gpl-vyzovam-yadra-linux"},"modified":"2020-08-04T13:42:33","modified_gmt":"2020-08-04T11:42:33","slug":"predlozhenie-po-blokirovke-drajverov-prosloek-predostavlyayushhih-dostup-k-gpl-vyzovam-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/predlozhenie-po-blokirovke-drajverov-prosloek-predostavlyayushhih-dostup-k-gpl-vyzovam-yadra-linux","title":{"rendered":"Oferte de blocare a driverelor-intermediar care ofer\u0103 acces la apelurile GPL ale nucleului Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Christoph Hellwig, un cunoscut dezvoltator al nucleului Linux, care a fost c\u00e2ndva membru al comitetului tehnic de conducere al organiza\u021biei Linux Foundation \u0219i a ac\u021bionat ca reclamant \u00eentr-un proces legat de GPL proces<\/a><\/noindex> cu VMware, a propus<\/a><\/noindex> pentru a \u00eent\u0103ri protec\u021bia \u00eempotriva leg\u0103rii driverelor proprietare cu componentele nucleului Linux, care sunt exportate doar pentru module sub licen\u021ba GPL. Pentru a ocoli restric\u021bia privind exportul simbolurilor GPL, produc\u0103torii de drivere proprietare folosesc un modul intermediar, a c\u0103rui cod este deschis \u0219i distribuit sub licen\u021ba GPLv2, dar func\u021biile sale se limiteaz\u0103 la traducerea accesului driverului proprietar la API-urile nucleului, interzise pentru utilizarea din cod proprietar direct.<\/p>\n

Pentru a bloca o astfel de manevr\u0103, Christoph Hellwig a preg\u0103tit<\/a><\/noindex> pentru kernelul Linux, patch-uri care asigur\u0103 mo\u0219tenirea flag-urilor legate de exportul simbolurilor GPL. Propunerea se refer\u0103 la mo\u0219tenirea flag-ului TAINT_PROPRIETARY_MODULE \u00een toate modulele care import\u0103 simboluri din module cu acest flag. Astfel, dac\u0103 un modul GPL de intermediere \u00eencearc\u0103 s\u0103 importe simboluri dintr-un modul non-GPL, atunci modulul GPL va mo\u0219teni eticheta TAINT_PROPRIETARY_MODULE \u0219i nu va putea accesa componentele kernelului disponibile doar pentru module sub licen\u021ba GPL, chiar dac\u0103 modulul a importat anterior simboluri din categoria \u201egplonly\u201d. <\/p>\n

\u00cen discu\u021bie a fost de asemenea \u00eengrijorare<\/a><\/noindex> propunerea de blocare invers\u0103 \u2014 dac\u0103 un modul import\u0103 simboluri EXPORT_SYMBOL_GPL, orice simboluri exportate de acest modul nu ar trebui s\u0103 fie importate de module care nu declar\u0103 explicit compatibilitatea cu GPL. Adic\u0103, dac\u0103 un modul import\u0103 simboluri EXPORT_SYMBOL_GPL, toate simbolurile exportate de acesta ar trebui tratate ca EXPORT_SYMBOL_GPL. Christoph Helwig Jurnalistul Bloomberg Jason Schreier<\/a><\/noindex>, este 100% de acord cu aceast\u0103 propunere, dar o astfel de modificare nu va fi acceptat\u0103 de Linus Torvalds, deoarece va duce la inaccesibilitatea pentru driverele proprietare a celei mai mari p\u0103r\u021bi a subsistemului nucleului, din cauza faptului c\u0103 \u00een dezvoltarea driverelor se folosesc simboluri de baz\u0103, exportate sub GPL.<\/p>\n

Modificarea a fost propus\u0103 ca r\u0103spuns la publicarea<\/a><\/noindex> un inginer de la Facebook, o serie de patch-uri cu implementarea unui nou subsistem netgpu, care permite organizarea unei schimburi directe de date (DMA
\nzero-copy) \u00eentre pl\u0103ca de re\u021bea \u0219i GPU, efectu\u00e2nd \u00een acela\u0219i timp procesarea protocolului prin intermediul CPU-ului. Nemul\u021bumirea<\/a><\/noindex> dezvoltatorilor a fost provocat\u0103 a<\/a><\/noindex> implement\u0103rile sunt doar pentru driverele proprietare NVIDIA prin intermediul straturilor GPL furnizate de aceste drivere. Ca r\u0103spuns la critici<\/a><\/noindex> autorul patch-urilor am indicat<\/a><\/noindex>, sistemul nu este legat de NVIDIA \u0219i suportul acestuia ar putea fi asigurat \u0219i pentru interfe\u021bele de programare GPU AMD \u0219i Intel. Ca urmare, promovarea netgpu \u00een kernel a fost considerat\u0103 imposibil\u0103 p\u00e2n\u0103 la apari\u021bia unui suport func\u021bional bazat pe drivere liber, cum ar fi AMDGPU, Intel i915 sau Nouveau. <\/p>\n

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

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

\u041a\u0440\u0438\u0441\u0442\u043e\u0444 \u0425\u0435\u043b\u0432\u0438\u0433 (Christoph Hellwig), \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a \u044f\u0434\u0440\u0430 Linux, \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u0432\u0445\u043e\u0434\u0438\u0432\u0448\u0438\u0439 \u0432 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043a\u043e\u043c\u0438\u0442\u0435\u0442 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 Linux Foundation \u0438 \u0432\u044b\u0441\u0442\u0443\u043f\u0430\u0432\u0448\u0438\u0439 \u0438\u0441\u0442\u0446\u043e\u043c \u0432 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u043e\u043c \u0441 GPL \u0441\u0443\u0434\u0435\u0431\u043d\u043e\u043c \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0435 \u0441 VMware, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u0443\u0436\u0435\u0441\u0442\u043e\u0447\u0438\u0442\u044c \u0437\u0430\u0449\u0438\u0442\u0443 \u043e\u0442 \u0441\u0432\u044f\u0437\u044b\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u044b\u0445 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 \u0441 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u043c\u0438 \u044f\u0434\u0440\u0430 Linux, \u044d\u043a\u0441\u043f\u043e\u0440\u0442\u0438\u0440\u0443\u0435\u043c\u044b\u043c\u0438 \u0442\u043e\u043b\u044c\u043a\u043e \u0434\u043b\u044f \u043c\u043e\u0434\u0443\u043b\u0435\u0439 \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPL. \u0414\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u043d\u0430 \u044d\u043a\u0441\u043f\u043e\u0440\u0442 GPL-\u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0438 […]<\/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":[702],"tags":[],"class_list":["post-90687","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47Propunere de blocare a driverelor-straturi care ofer\u0103 acces la apelurile GPL ale nucleului Linux | ProHoster","description":"Christoph Hellwig, un cunoscut dezvoltator al nucleului Linux, care a fost c\u00e2ndva membru al comitetului tehnic de conducere al organiza\u021biei Linux Foundation \u0219i a ac\u021bionat ca reclamant \u00eentr-un 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