{"id":105254,"date":"2022-10-05T15:36:53","date_gmt":"2022-10-05T13:36:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vo-freebsd-dobavlena-podderzhka-protokola-netlink-primenyaemogo-v-yadre-linux"},"modified":"2022-10-05T15:36:53","modified_gmt":"2022-10-05T13:36:53","slug":"vo-freebsd-dobavlena-podderzhka-protokola-netlink-primenyaemogo-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vo-freebsd-dobavlena-podderzhka-protokola-netlink-primenyaemogo-v-yadre-linux","title":{"rendered":"O FreeBSD adicionou suporte ao protocolo Netlink, utilizado no n\u00facleo do Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A implementa\u00e7\u00e3o do protocolo de comunica\u00e7\u00e3o Netlink (RFC 3549) foi incorporada ao c\u00f3digo-fonte do FreeBSD, utilizada no Linux para organizar a intera\u00e7\u00e3o entre o n\u00facleo e os processos no espa\u00e7o do usu\u00e1rio. O projeto abrange o suporte \u00e0 fam\u00edlia de opera\u00e7\u00f5es NETLINK_ROUTE para gerenciar o estado da subsistema de rede no n\u00facleo.    <\/p>\n<p>Na sua forma atual, o n\u00edvel de suporte do Netlink permite o uso da utilidade ip do FreeBSD, proveniente do pacote iproute2, para gerenciar interfaces de rede, configurar endere\u00e7os IP, ajustar roteamentos e manipular objetos nexthop, que armazenam dados sobre o estado utilizado para transmitir pacotes ao destino desejado. Ap\u00f3s pequenas modifica\u00e7\u00f5es nos arquivos de cabe\u00e7alho, \u00e9 poss\u00edvel utilizar o Netlink no pacote de roteamento Bird.    <\/p>\n<p>A implementa\u00e7\u00e3o do Netlink para FreeBSD est\u00e1 configurada como um m\u00f3dulo de n\u00facleo carreg\u00e1vel, que, sempre que poss\u00edvel, n\u00e3o afeta outros subsistemas do n\u00facleo e cria filas de tarefas (taskqueue) separadas para processar mensagens recebidas pelo protocolo e executar opera\u00e7\u00f5es de forma ass\u00edncrona. A raz\u00e3o para a portabilidade do Netlink \u00e9 a aus\u00eancia de um mecanismo padr\u00e3o para interagir com os subsistemas do n\u00facleo, levando diferentes subsistemas e drivers a inventarem seus pr\u00f3prios protocolos.     <\/p>\n<p>O Netlink oferece uma camada de comunica\u00e7\u00e3o unificada e um formato de mensagens expans\u00edvel, que pode atuar como intermedi\u00e1rio, combinando automaticamente dados dispersos de v\u00e1rias fontes em um \u00fanico pedido. Por exemplo, subsistemas como devd, jail e pfilctl do FreeBSD, que atualmente usam chamadas ioctl pr\u00f3prias, podem ser traduzidos para o Netlink, facilitando significativamente a cria\u00e7\u00e3o de aplicativos para trabalhar com esses subsistemas. Al\u00e9m disso, o uso do Netlink para modificar objetos e grupos de nexthops na pilha de roteamento permitir\u00e1 uma intera\u00e7\u00e3o mais eficiente com os processos de roteamento no espa\u00e7o do usu\u00e1rio.          <\/p>\n<p>Funcionalidades atualmente implementadas:  <\/p>\n<ul>\n<li class=\"l\"> Obten\u00e7\u00e3o de informa\u00e7\u00f5es sobre rotas, objetos e grupos de nexthops, interfaces de rede, endere\u00e7os e hosts vizinhos (arp\/ndp).\n<li class=\"l\"> Gera\u00e7\u00e3o de notifica\u00e7\u00f5es sobre a adi\u00e7\u00e3o e remo\u00e7\u00e3o de interfaces de rede, a configura\u00e7\u00e3o e remo\u00e7\u00e3o de endere\u00e7os, adi\u00e7\u00e3o e remo\u00e7\u00e3o de rotas.\n<li class=\"l\"> Adi\u00e7\u00e3o e remo\u00e7\u00e3o de rotas, objetos e grupos de nexthops, gateways e interfaces de rede.\n<li class=\"l\"> Integra\u00e7\u00e3o com a interface Rtsock para gerenciamento da tabela de roteamento.  <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57873\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443 FreeBSD \u043f\u0440\u0438\u043d\u044f\u0442\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043a\u043e\u043c\u043c\u0443\u043d\u0438\u043a\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Netlink (RFC 3549), \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0432 Linux \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u044f\u0434\u0440\u0430 \u0441 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430\u043c\u0438 \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. \u041f\u0440\u043e\u0435\u043a\u0442 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 NETLINK_ROUTE \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0432 \u044f\u0434\u0440\u0435. \u0412 \u0442\u0435\u043a\u0443\u0449\u0435\u043c \u0432\u0438\u0434\u0435 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 Netlink \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0432\u043e FreeBSD Linux-\u0443\u0442\u0438\u043b\u0438\u0442\u0443 ip \u0438\u0437 \u043f\u0430\u043a\u0435\u0442\u0430 iproute2 \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u0435\u0432\u044b\u043c\u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430\u043c\u0438, [&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":[702],"tags":[],"class_list":["post-105254","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443 FreeBSD \u043f\u0440\u0438\u043d\u044f\u0442\u0430 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