Linux Certif

Toute la documentation sur la certification Linux LPI

netlink

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netlink - netlink ¥Þ¥¯¥í

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#include <asm/types.h>




#include <linux/netlink.h>




int NLMSG_ALIGN(size_t len);




int NLMSG_LENGTH(size_t len);




int NLMSG_SPACE(size_t len);




void *NLMSG_DATA(struct nlmsghdr *nlh);




struct nlmsghdr *NLMSG_NEXT(struct nlmsghdr *nlh, int len);




int NLMSG_OK(struct nlmsghdr *nlh, int len);




int NLMSG_PAYLOAD(struct nlmsghdr *nlh, int len);

ÀâÌÀ

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NLMSG_ALIGN

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NLMSG_LENGTH

³ÊǼÎΰè (payload) ¤ÎŤµ¤ò°ú¿ô¤Ë¤È¤ê¡¢ nlmsghdr ¤Î nlmsg_len ¥Õ¥£¡¼¥ë¥É¤ËǼ¤á¤ë¤¿¤á¤Ë·¤¨¤é¤ì¤¿Ä¹¤µ¤òÊÖ¤¹¡£

NLMSG_SPACE

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NLMSG_DATA

Í¿¤¨¤¿ nlmsghdr ¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿³ÊǼÎΰè¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£

NLMSG_NEXT ¥Þ¥ë¥Á¥Ñ¡¼¥È¥á¥Ã¥»¡¼¥¸¤Ë¤ª¤¤¤Æ¡¢¼¡¤Î nlmsghdr ¤òÆþ¼ê¤¹¤ë¡£¤³¤ì¤ò¸Æ¤Ó½Ð¤¹¤È¤­¤Ë¤Ï¡¢ ¸½ºß¤Î nlmsghdr ¤Ç NLMSG_DONE ¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤Ê¤¤¤³¤È¤ò ³Îǧ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¤³¤Î´Ø¿ô¤Ï½ªÃ¼¤Ç NULL ¤òÊÖ¤µ¤Ê¤¤¤«¤é¤Ç¤¢¤ë¡£ length °ú¿ô¤Ï¥á¥Ã¥»¡¼¥¸¥Ð¥Ã¥Õ¥¡¤Î»Ä¤êŤµ¤¬Æþ¤Ã¤¿º¸ÊÕÃͤǤ¢¤ë¡£ ¤³¤Î¥Þ¥¯¥í¤Ï¤³¤Î°ú¿ô¤«¤é¥á¥Ã¥»¡¼¥¸¥Ø¥Ã¥À¤ÎŤµÊ¬¤òº¹¤·°ú¤¯¡£

NLMSG_OK

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NLMSG_PAYLOAD

nlmsghdr ¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿³ÊǼÎΰè¤ÎŤµ¤òÊÖ¤¹¡£

Ãí°Õ

Ä̾ï¤Ï¥«¡¼¥Í¥ë¤ÎÄã¥ì¥Ù¥ë¥¤¥ó¥¿¡¼¥Õ¥§¥¤¥¹¤è¤ê¤â¡¢ libnetlink ·Ðͳ¤Ç netlink ¤òÍѤ¤¤ë¤Û¤¦¤¬Îɤ¤¡£

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netlink(7)

¤ª¤è¤Ó libnetlink ¤Ë´Ø¤·¤Æ¤Ï ftp://ftp.inr.ac.ru/ip-routing/iproute2*