{"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\/fr\/blog\/news\/predlozhenie-po-blokirovke-drajverov-prosloek-predostavlyayushhih-dostup-k-gpl-vyzovam-yadra-linux","title":{"rendered":"Proposition de blocage des drivers interm\u00e9diaires fournissant un acc\u00e8s aux appels GPL du noyau Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Christoph Hellwig, un d\u00e9veloppeur renomm\u00e9 du noyau Linux, qui a \u00e9t\u00e9 membre du comit\u00e9 technique de la Linux Foundation et a agi en tant que plaignant dans un litige li\u00e9 \u00e0 la GPL proc\u00e8s<\/a><\/noindex> contre VMware, a propos\u00e9<\/a><\/noindex> pour renforcer la protection contre l'association de pilotes propri\u00e9taires avec des composants du noyau Linux, export\u00e9s uniquement pour des modules sous licence GPL. Pour contourner la restriction sur l'exportation des symboles GPL, les fabricants de pilotes propri\u00e9taires utilisent un module de couche interm\u00e9diaire, dont le code est ouvert et distribu\u00e9 sous licence GPLv2, mais dont les fonctions se limitent \u00e0 traduire l'acc\u00e8s du pilote propri\u00e9taire aux API n\u00e9cessaires du noyau, interdites \u00e0 l'utilisation depuis le code propri\u00e9taire directement.<\/p>\n

Pour bloquer une telle man\u0153uvre, Christoph Hellwig a pr\u00e9par\u00e9<\/a><\/noindex> pour le noyau Linux, des correctifs qui assurent l'h\u00e9ritage des drapeaux li\u00e9s \u00e0 l'exportation des symboles GPL. La proposition vise \u00e0 h\u00e9riter du drapeau TAINT_PROPRIETARY_MODULE dans tous les modules qui importent des symboles de modules avec ce drapeau. Ainsi, si un module GPL interm\u00e9diaire tente d'importer des symboles d'un module non GPL, le module GPL h\u00e9ritera l'\u00e9tiquette TAINT_PROPRIETARY_MODULE et ne pourra pas acc\u00e9der aux composants du noyau r\u00e9serv\u00e9s aux modules sous licence GPL, m\u00eame si le module a pr\u00e9c\u00e9demment import\u00e9 des symboles de la cat\u00e9gorie \u00ab gplonly \u00bb. <\/p>\n

Lors de la discussion, il y avait aussi l'avis<\/a><\/noindex> proposition de verrouillage invers\u00e9 \u2014 si un module importe des symboles EXPORT_SYMBOL_GPL, tous les symboles export\u00e9s par ce module ne doivent pas \u00eatre import\u00e9s par des modules qui ne d\u00e9clarent pas explicitement leur compatibilit\u00e9 avec GPL. C'est-\u00e0-dire que si un module importe des symboles EXPORT_SYMBOL_GPL, tous ses symboles export\u00e9s doivent \u00eatre trait\u00e9s comme EXPORT_SYMBOL_GPL. Christoph Helwig a d\u00e9clar\u00e9<\/a><\/noindex>, a d\u00e9clar\u00e9 qu'il \u00e9tait 100% d'accord avec cette proposition, mais que ce changement ne passerait pas par Linus Torvalds, car il entra\u00eenerait l'inaccessibilit\u00e9 pour les pilotes propri\u00e9taires de la majeure partie des sous-syst\u00e8mes du noyau, car lors du d\u00e9veloppement des pilotes, les symboles de base export\u00e9s sous la GPL sont utilis\u00e9s.<\/p>\n

Le changement a \u00e9t\u00e9 propos\u00e9 en r\u00e9ponse \u00e0 publication<\/a><\/noindex> un ing\u00e9nieur de Facebook d'une s\u00e9rie de patchs mettant en \u0153uvre un nouveau sous-syst\u00e8me netgpu, permettant d'organiser un \u00e9change direct de donn\u00e9es (DMA
\nzero-copy) entre la carte r\u00e9seau et le GPU, tout en effectuant le traitement du protocole par le biais du CPU. Le m\u00e9contentement<\/a><\/noindex> des d\u00e9veloppeurs a \u00e9t\u00e9 provoqu\u00e9 par disponibilit\u00e9<\/a><\/noindex> r\u00e9alisations uniquement pour les pilotes propri\u00e9taires NVIDIA via la couche GPL fournie par ces pilotes. En r\u00e9ponse \u00e0 la critique<\/a><\/noindex> l'auteur des patchs a indiqu\u00e9<\/a><\/noindex>, que le sous-syst\u00e8me n'est pas li\u00e9 \u00e0 NVIDIA et que son support peut \u00eatre assur\u00e9 \u00e9galement pour les interfaces logicielles vers les GPU AMD et Intel. En fin de compte, la promotion de netgpu dans le noyau a \u00e9t\u00e9 jug\u00e9e impossible jusqu'\u00e0 l'apparition d'un support fonctionnel bas\u00e9 sur des pilotes libres, tels que AMDGPU, Intel i915 ou Nouveau. <\/p>\n

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

Source : opennet.ru<\/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\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\udd47 Proposition de blocage des pilotes en couche fournissant un acc\u00e8s aux appels GPL du noyau Linux | ProHoster","description":"Christoph Hellwig, un d\u00e9veloppeur renomm\u00e9 du noyau Linux, qui a \u00e9t\u00e9 membre du comit\u00e9 technique de la Linux Foundation et a agi en tant que plaignant dans un litige li\u00e9 \u00e0 la 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