Linux Certif

Toute la documentation sur la certification Linux LPI

rtnetlink

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rtnetlink, NETLINK_ROUTE - Linux IPv4 ¥ë¡¼¥Æ¥£¥ó¥°¥½¥±¥Ã¥È

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#include <asm/types.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <sys/socket.h>

rtnetlink_socket = socket(PF_NETLINK, int socket_type, NETLINK_ROUTE);

ÀâÌÀ

rtnetlink ¤Ï¥«¡¼¥Í¥ë¤Î¥ë¡¼¥Æ¥£¥ó¥°¥Æ¡¼¥Ö¥ë¤òÆɤó¤À¤êÊѹ¹¤·¤¿¤ê ¤¹¤ë¤¿¤á¤Î¤â¤Î¤Ç¤¢¤ë¡£¤³¤ì¤Ï¥«¡¼¥Í¥ë¤¬ÆâÉô¤Î¥µ¥Ö¥·¥¹¥Æ¥à¤È ÄÌ¿®¤¹¤ë¤¿¤á¤Ë¤âÍѤ¤¤é¤ì¤Æ¤¤¤ë¤¬¡¢¤½¤ì¤Ï¤³¤³¤Ç¤Ïµ­½Ò¤·¤Ê¤¤¡£ ¤³¤Î man ¥Ú¡¼¥¸¤Ç¤Ï¥æ¡¼¥¶¡¼¶õ´Ö¤Î¥×¥í¥°¥é¥à¤È¤ÎÄÌ¿®¤Ë´Ø¤·¤Æ¤Î¤ß½Ò¤Ù¤ë¡£ ¥Í¥Ã¥È¥ï¡¼¥¯·ÐÏ©¡¦IP ¥¢¥É¥ì¥¹¡¦¥ê¥ó¥¯¥Ñ¥é¥á¡¼¥¿¡¦ ¶á˵ÀßÄê (neighbour setup)¡¦¥­¥å¡¼¥¤¥ó¥°¥ë¡¼¥ë (queueing dicipline)¡¦ ¥È¥é¥Õ¥£¥Ã¥¯¥¯¥é¥¹¡¦¥Ñ¥±¥Ã¥È¤Î¥¯¥é¥¹Ê¬Îà¤Ê¤É¤¬¡¢¤¹¤Ù¤Æ NETLINK_ROUTE ¥½¥±¥Ã¥È¤òÄ̤·¤ÆÀ©¸æ¤Ç¤­¤ë¡£ rtnetlink ¤Ï netlink ¥á¥Ã¥»¡¼¥¸¤ò¥Ù¡¼¥¹¤Ë¤·¤Æ¤¤¤ë¡£¾ÜºÙ¤Ï netlink(7) ¤ò¸«¤ë¤³¤È¡£

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rtnetlink ¥á¥Ã¥»¡¼¥¸¤Ë¤Ï¡¢½é´ü¥Ø¥Ã¥À¤Î¸å¤ËÉÕ²ÃŪ¤Ê°À­¤ò »ý¤Ä¤â¤Î¤¬¤¢¤ë¡£

struct rtattr {

    unsigned short rta_len;    /* Length of option */

    unsigned short rta_type;   /* Type of option */

    /* Data follows */

};

¤³¤ì¤é¤Î°À­¤ÎÁàºî¤Ï¡¢ RTA_* ¥Þ¥¯¥í¤« libnetlink ¤òÄ̤·¤Æ¤Î¤ß ¹Ô¤¦¤Ù¤­¤Ç¤¢¤ë¡£ rtnetlink(3) ¤ò¸«¤è¡£

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rtnetlink ¤Ï (ɸ½àŪ¤Ê netlink ¥á¥Ã¥»¡¼¥¸¤Ë²Ã¤¨¤Æ) °Ê²¼¤Î¥á¥Ã¥»¡¼¥¸¥¿¥¤¥×¤«¤é¹½À®¤µ¤ì¤ë¡£

RTM_NEWLINK, RTM_DELLINK, RTM_GETLINK

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struct ifinfomsg {

    unsigned char  ifi_family; /* AF_UNSPEC */

    unsigned short ifi_type;   /* Device type */

    int            ifi_index;  /* Interface index */

    unsigned int   ifi_flags;  /* Device flags  */

    unsigned int   ifi_change; /* change mask */

};

ifi_flags ¤Ï¥Ç¥Ð¥¤¥¹¤Î¥Õ¥é¥°¤Ç¤¢¤ë¡£ netdevice(7) ¤ò¸«¤è¡£ ifi_index ¤Ï¾¤È½Å¤Ê¤é¤Ê¤¤¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î index ¤Ç¤¢¤ë¡£ ifi_change ¤Ï¾­Íè¤ÎÍøÍѤΤ¿¤á¤ËͽÌ󤵤ì¤Æ¤ª¤ê¡¢¾ï¤Ë 0xFFFFFFFF ¤Ë¥»¥Ã¥È¤¹¤Ù¤­¤Ç¤¢¤ë¡£

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rta_type	Ãͤη¿	ÀâÌÀ
IFLA_UNSPEC	-	»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¡£
IFLA_ADDRESS	hardware address	¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹ L2 ¥¢¥É¥ì¥¹
IFLA_BROADCAST	hardware address	L2 ¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥¢¥É¥ì¥¹
IFLA_IFNAME	asciiz string	¥Ç¥Ð¥¤¥¹Ì¾
IFLA_MTU	unsigned int	¥Ç¥Ð¥¤¥¹¤Î MTU
IFLA_LINK	int	¥ê¥ó¥¯¥¿¥¤¥×
IFLA_QDISC	asciiz string	¥­¥å¡¼¥¤¥ó¥°¤Î¥ë¡¼¥ë
IFLA_STATS	²¼µ­»²¾È	¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ÎÅý·×

IFLA_STATS ¤ÎÃͤη¿¤Ï struct net_device_stats ¤Ç¤¢¤ë¡£

RTM_NEWADDR, RTM_DELADDR, RTM_GETADDR

¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î IP ¥¢¥É¥ì¥¹¤Î¾ðÊó¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ Linux 2.2 ¤Ç¤Ï¡¢°ì¤Ä¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ËÊ£¿ô¤Î IP ¥¢¥É¥ì¥¹¤ò ÊÝ»ý¤µ¤»¤ë¤³¤È¤¬¤Ç¤­¡¢¤³¤ì¤Ï 2.0 ¤ÎÊÌ̾¥Ç¥Ð¥¤¥¹¤Î³µÇ°¤òÃÖ¤­´¹¤¨¤ë¡£ Linux 2.2 ¤Ç¤Ï¡¢¤³¤ì¤é¤Î¥á¥Ã¥»¡¼¥¸¤Ï IPv4 ¤È IPv6 ¤ÎξÊý¤Î¥¢¥É¥ì¥¹¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¡£ ¤³¤ì¤é¤Ï ifaddrmsg ¹½Â¤ÂΤòȼ¤¦¡£¤½¤Î¤¢¤È¤Ë rtaddr ¥ë¡¼¥Æ¥£¥ó¥°Â°À­¤¬Â³¤¯¤³¤È¤â¤¢¤ë¡£

struct ifaddrmsg {

    unsigned char ifa_family;    /* Address type */

    unsigned char ifa_prefixlen; /* Prefixlength of address */

    unsigned char ifa_flags;     /* Address flags */

    unsigned char ifa_scope;     /* Address scope */

    int           ifa_index;     /* Interface index */

};

ifa_family ¤Ï¥¢¥É¥ì¥¹¥Õ¥¡¥ß¥ê¡¼¤Î¥¿¥¤¥×¤Ç¤¢¤ë (¸½ºß¤Ï AF_INET ¤Þ¤¿¤Ï AF_INET6)¡£ ifa_prefixlen ¤Ï¥¢¥É¥ì¥¹¤Î¥¢¥É¥ì¥¹¥Þ¥¹¥¯¤ÎŤµ¤Ç¤¢¤ë (IPv4 ¤Î¤è¤¦¤Ë¡¢ ¤½¤Î¥Õ¥¡¥ß¥ê¡¼¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¾ì¹ç)¡£ ifa_scope ¤Ï¥¢¥É¥ì¥¹¤Î¥¹¥³¡¼¥×¤Ç¤¢¤ë¡£ ifa_index ¤Ï¥¢¥É¥ì¥¹¤¬´ØÏ¢¤Å¤±¤é¤ì¤Æ¤¤¤ë¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î index ¤Ç¤¢¤ë¡£ ifa_flags ¤Ï¥Õ¥é¥°¥ï¡¼¥É¤Ç¡¢ Æó¤Ä¤á¤Î¥¢¥É¥ì¥¹ (¸Å¤¤ÊÌ̾¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹) ¤Î¾ì¹ç¤Ï IFA_F_SECONDARY ¤Ë¡¢±Ê³Ū¤Ê¥¢¥É¥ì¥¹¤Î¾ì¹ç¤Ï IFA_F_PERMANENT ¤ËŬÍѤµ¤ì¤ë¡£¥æ¡¼¥¶¡¼¤Ë¤è¤Ã¤Æ¥»¥Ã¥È¤µ¤ì¤ë¥Õ¥é¥°¤È¡¢ undocumented ¤Ê¥Õ¥é¥°¤¬¤¢¤ë¡£

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rta_type	Ãͤη¿	ÀâÌÀ
IFA_UNSPEC	-	»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤
IFA_ADDRESS	raw protocol address	¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¥¢¥É¥ì¥¹
IFA_LOCAL	raw protocol address	¥í¡¼¥«¥ë¥¢¥É¥ì¥¹
IFA_LABEL	asciiz string	¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î̾Á°
IFA_BROADCAST	raw protocol address	¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¥¢¥É¥ì¥¹
IFA_ANYCAST	raw protocol address	anycast ¥¢¥É¥ì¥¹
IFA_CACHEINFO	struct ifa_cacheinfo	¥¢¥É¥ì¥¹¾ðÊó

RTM_NEWROUTE, RTM_DELROUTE, RTM_GETROUTE

¥Í¥Ã¥È¥ï¡¼¥¯·ÐÏ©¤Î¾ðÊó¤òÀ¸À®¡¦ºï½ü¡¦¼èÆÀ¤¹¤ë¡£ ¤³¤ì¤é¤Î¥á¥Ã¥»¡¼¥¸¤Ï rtmsg ¹½Â¤ÂΤòȼ¤¦¡£¤½¤Î¤¢¤È¤Ë¤¤¤¯¤Ä¤«¤Î rtattr ¹½Â¤ÂΤò³¤±¤ë¤³¤È¤â¤Ç¤­¤ë¡£ RTM_GETROUTE ¤Ç rtm_dst_len ¤È rtm_src_len ¤Ë 0 ¤ò¥»¥Ã¥È¤¹¤ë¤È¡¢ »ØÄꤵ¤ì¤¿¥ë¡¼¥Æ¥£¥ó¥°¥Æ¡¼¥Ö¥ë¤ÎÁ´¤Æ¤Î¥¨¥ó¥È¥ê¤ò½êÆÀ¤¹¤ë¡£ rtm_table ¤È rtm_protocol °Ê³°¤Î¾¤Î¥Õ¥£¡¼¥ë¥É¤Ë 0 ¤òÆþ¤ì¤ë¤È¡¢¥ï¥¤¥ë¥É¥«¡¼¥É¤ò°ÕÌ£¤¹¤ë¡£

struct rtmsg {

    unsigned char rtm_family;   /* Address family of route */

    unsigned char rtm_dst_len;  /* Length of source */

    unsigned char rtm_src_len;  /* Length of destination */

    unsigned char rtm_tos;      /* TOS filter */



    unsigned char rtm_table;    /* Routing table ID */

    unsigned char rtm_protocol; /* Routing protocol; see below */

    unsigned char rtm_scope;    /* See below */

    unsigned char rtm_type;     /* See below */



    unsigned int  rtm_flags;

};

rtm_type	·ÐÏ©¤Î¥¿¥¤¥×
RTN_UNSPEC	̤ÃΤηÐÏ©
RTN_UNICAST	¥²¡¼¥È¥¦¥§¥¤¤Þ¤¿¤Ï¥À¥¤¥ì¥¯¥È¤Ê·ÐÏ©
RTN_LOCAL	¥í¡¼¥«¥ë¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î·ÐÏ©
RTN_BROADCAST	¥í¡¼¥«¥ë¤Ê¥Ö¥í¡¼¥É¥­¥ã¥¹¥È·ÐÏ© (¥Ö¥í¡¼¥É¥­¥ã¥¹¥È¤È¤·¤ÆÁ÷¿®¤µ¤ì¤ë)
RTN_ANYCAST	¥í¡¼¥«¥ë¤Ê¥Ö¥í¡¼¥É¥­¥ã¥¹¥È·ÐÏ© (¥æ¥Ë¥­¥ã¥¹¥È¤È¤·¤ÆÁ÷¿®¤µ¤ì¤ë)
RTN_MULTICAST	¥Þ¥ë¥Á¥­¥ã¥¹¥È·ÐÏ©
RTN_BLACKHOLE	¥Ñ¥±¥Ã¥È¤ò¼Î¤Æ¤ë·ÐÏ©
RTN_UNREACHABLE	Åþã¤Ç¤­¤Ê¤¤¹Ô¤­Àè
RTN_PROHIBIT	¥Ñ¥±¥Ã¥È¤òµñÈݤ¹¤ë·ÐÏ©
RTN_THROW	·Ðϩõº÷¤òÊ̤Υơ¼¥Ö¥ë¤Ç·Ñ³
RTN_NAT	¥Í¥Ã¥È¥ï¡¼¥¯¥¢¥É¥ì¥¹¤ÎÊÑ´¹¥ë¡¼¥ë
RTN_XRESOLVE	³°Éô¥ì¥¾¥ë¥Ð¤ò»²¾È (¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤)

rtm_protocol	·ÐÏ©¤Î¾ðÊó¸»
RTPROT_UNSPEC	ÉÔÌÀ
RTPROT_REDIRECT	ICMP ¥ê¥À¥¤¥ì¥¯¥È¤Ë¤è¤ë (¸½ºß¤ÏÍѤ¤¤é¤ì¤Ê¤¤)
RTPROT_KERNEL	¥«¡¼¥Í¥ë¤Ë¤è¤ë
RTPROT_BOOT	¥Ö¡¼¥È»þ
RTPROT_STATIC	´ÉÍý¼Ô¤Ë¤è¤ë

RTPROT_STATIC ¤è¤ê¤âÂ礭¤ÊÃͤϥ«¡¼¥Í¥ë¤Ë¤è¤Ã¤Æ²ò¼á¤µ¤ì¤Ê¤¤¡£¤³¤ì¤Ï ñ¤Ê¤ë¥æ¡¼¥¶¡¼¤Ø¤Î¾ðÊó¤Ç¤¢¤ë¡£¤³¤ì¤é¤Ï·ÐÏ©¾ðÊó¤Î¾ðÊ󸻤ò ¥¿¥°ÉÕ¤±¤·¤¿¤ê¡¢Ê£¿ô¤Î¥ë¡¼¥Æ¥£¥ó¥°¥Ç¡¼¥â¥ó¤«¤é¤Î¾ðÊó¤ò ¶èÊ̤¹¤ë¤¿¤á¤ËÍѤ¤¤ë¤³¤È¤¬¤Ç¤­¤ë¡£ ´û¤Ë³ä¤êÅö¤Æ¤é¤ì¤Æ¤¤¤ë¥ë¡¼¥Æ¥£¥ó¥°¥Ç¡¼¥â¥ó¤Î¼±Ê̻ҤˤĤ¤¤Æ¤Ï <linux/rtnetlink.h> ¤ò¸«¤è¡£

rtm_scope ¤Ï¹Ô¤­Àè¤Ø¤Îµ÷Î¥¤Ç¤¢¤ë¡£

RT_SCOPE_UNIVERSE	¥°¥í¡¼¥Ð¥ë¤Ê·ÐÏ©
RT_SCOPE_SITE	¥í¡¼¥«¥ë¤Ê¼«Î§¥·¥¹¥Æ¥à¤Ë¤ª¤±¤ëÆâÉô·ÐÏ©
RT_SCOPE_LINK	¤³¤Î¥ê¥ó¥¯¾å¤Î·ÐÏ©
RT_SCOPE_HOST	¥í¡¼¥«¥ë¥Û¥¹¥È¾å¤Î·ÐÏ©
RT_SCOPE_NOWHERE	¹Ô¤­À褬¸ºß¤·¤Ê¤¤

¥æ¡¼¥¶¡¼¤Ï RT_SCOPE_UNIVERSE ¤È RT_SCOPE_SITE ¤Î´Ö¤ÎÃͤòÍѤ¤¤ë¤³¤È¤¬¤Ç¤­¤ë¡£

rtm_flags ¤Ï°Ê²¼¤Î°ÕÌ£¤ò»ý¤Ä:

RTM_F_NOTIFY	·ÐÏ©¤¬Êѹ¹¤µ¤ì¤ë¤È¡¢ rtnetlink ¤òÄ̤·¤Æ¥æ¡¼¥¶¡¼¤ËÄÌÃΤ¬¹Ô¤¯¡£
RTM_F_CLONED	·ÐÏ©¤Ï¾¤Î·ÐÏ©¤Ë¤è¤Ã¤ÆÊ£À½¤µ¤ì¤¿¡£
RTM_F_EQUALIZE	¥Þ¥ë¥Á¥­¥ã¥¹¥È¥¤¥¯¥©¥é¥¤¥¶¡¼ (¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤)

rtm_table ¤Ç¤Ï¥ë¡¼¥Æ¥£¥ó¥°¥Æ¡¼¥Ö¥ë¤ò»ØÄꤹ¤ë¡£

RT_TABLE_UNSPEC	»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¥ë¡¼¥Æ¥£¥ó¥°¥Æ¡¼¥Ö¥ë
RT_TABLE_DEFAULT	¥Ç¥Õ¥©¥ë¥È¤Î¥Æ¡¼¥Ö¥ë
RT_TABLE_MAIN	¥á¥¤¥ó¤Î¥Æ¡¼¥Ö¥ë
RT_TABLE_LOCAL	¥í¡¼¥«¥ë¥Æ¡¼¥Ö¥ë

¥æ¡¼¥¶¡¼¤Ï RT_TABLE_UNSPEC ¤È RT_TABLE_DEFAULT. ¤Î´Ö¤ÎǤ°Õ¤ÎÃͤòÍѤ¤¤ë¤³¤È¤¬¤Ç¤­¤ë¡£

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rta_type	Ãͤη¿	ÀâÌÀ
RTA_UNSPEC	-	̵»ë¤µ¤ì¤ë
RTA_DST	protocol address	·ÐÏ©¤Î¹Ô¤­À襢¥É¥ì¥¹
RTA_SRC	protocol address	·ÐÏ©¤Îȯ¿®¸µ¥¢¥É¥ì¥¹
RTA_IIF	int	ÆþÎÏ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î index
RTA_OIF	int	½ÐÎÏ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Î index
RTA_GATEWAY	protocol address	·ÐÏ©¤Î¥²¡¼¥È¥¦¥§¥¤
RTA_PRIORITY	int	·ÐÏ©¤ÎÍ¥ÀèÅÙ
RTA_PREFSRC
RTA_METRICS	int	·ÐÏ©¤Î¥á¥È¥ê¥Ã¥¯
RTA_MULTIPATH
RTA_PROTOINFO
RTA_FLOW
RTA_CACHEINFO

(¤³¤ì¤é¤ÎÃͤòËä¤á¤ë¤³¤È!)

RTM_NEWNEIGH, RTM_DELNEIGH, RTM_GETNEIGH

¶á˵¥Æ¡¼¥Ö¥ë (neighbour table) ¤Î¥¨¥ó¥È¥ê (Î㤨¤Ð ARP ¥¨¥ó¥È¥ê) ¤Î¾ðÊó¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ ¤³¤Î¥á¥Ã¥»¡¼¥¸¤Ï ndmsg ¹½Â¤ÂΤòȼ¤¦¡£

struct ndmsg {

    unsigned char ndm_family;

    int           ndm_ifindex;  /* Interface index */

    __u16         ndm_state;    /* State */

    __u8          ndm_flags;    /* Flags */

    __u8          ndm_type;

};



struct nda_cacheinfo {

    __u32         ndm_confirmed;

    __u32         ndm_used;

    __u32         ndm_updated;

    __u32         ndm_refcnt;

};

ndm_state ¤Ï°Ê²¼¤Î¾õÂ֤Υӥåȥޥ¹¥¯¤Ç¤¢¤ë:

NUD_INCOMPLETE	¸½ºß¥ì¥¾¥ë¥ÖÃæ¤Î¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_REACHABLE	Æ°ºî³ÎǧºÑ¤ß¤Î¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_STALE	´ü¸ÂÀÚ¤ì¤Î¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_DELAY	¥¿¥¤¥ÞÂÔ¤Á¤Î¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_PROBE	ºÆ³ÎǧÃæ¤Î¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_FAILED	ÉÔÀµ¤Ê¥­¥ã¥Ã¥·¥å¥¨¥ó¥È¥ê
NUD_NOARP	¹Ô¤­À襭¥ã¥Ã¥·¥å¤Î¤Ê¤¤¥Ç¥Ð¥¤¥¹
NUD_PERMANENT	ÀÅŪ¤Ê¥¨¥ó¥È¥ê

Í­¸ú¤Ê ndm_flags ¤Ï°Ê²¼¤ÎÄ̤ê:

NTF_PROXY	¥×¥í¥¯¥· arp ¥¨¥ó¥È¥ê
NTF_ROUTER	IPv6 ¥ë¡¼¥¿

(¹½Â¤ÂÎ¥á¥ó¥Ð¤Îµ­½Ò¤ò¤â¤¦¤Á¤ç¤Ã¤È²þÎɤ¹¤ë¤³¤È)

rtaddr ¹½Â¤ÂΤϡ¢ rta_type ¥Õ¥£¡¼¥ë¥É¤Ë±þ¤¸¤Æ¤½¤ì¤¾¤ì°Ê²¼¤Î°ÕÌ£¤ò»ý¤Ä:

NDA_UNSPEC	̤ÃΤΥ¿¥¤¥×
NDA_DST	¶á˵¥­¥ã¥Ã¥·¥å¥Í¥Ã¥È¥ï¡¼¥¯ÁؤιԤ­À襢¥É¥ì¥¹
NDA_LLADDR	¶á˵¥­¥ã¥Ã¥·¥å¥ê¥ó¥¯ÁؤΥ¢¥É¥ì¥¹
NDA_CACHEINFO	¥­¥ã¥Ã¥·¥å¤ÎÅý·×

rta_type ¥Õ¥£¡¼¥ë¥É¤¬ NDA_CACHEINFO ¤Î¾ì¹ç¤Ë¤Ï¡¢ struct nda_cacheinfo ¥Ø¥Ã¥À¤¬Â³¤¯¡£

RTM_NEWRULE, RTM_DELRULE, RTM_GETRULE

¥ë¡¼¥Æ¥£¥ó¥°¥ë¡¼¥ë¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ struct rtmsg ¤òȼ¤¦¡£

RTM_NEWQDISC, RTM_DELQDISC, RTM_GETQDISC

¥­¥å¡¼¥¤¥ó¥°¥ë¡¼¥ë¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ ¤³¤Î¥á¥Ã¥»¡¼¥¸¤Ï struct tcmsg ¤òȼ¤¤¡¢¤Þ¤¿¤½¤Î¤¢¤È¤Ë°À­¤¬¤¤¤¯¤Ä¤«Â³¤¯¤³¤È¤â¤¢¤ë¡£

struct tcmsg {

    unsigned char    tcm_family;

    int              tcm_ifindex;   /* interface index */

    __u32            tcm_handle;    /* Qdisc handle */

    __u32            tcm_parent;    /* Parent qdisc */

    __u32            tcm_info;

};

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rta_type	Ãͤη¿	ÀâÌÀ
TCA_UNSPEC	-	»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤
TCA_KIND	asciiz string	¥­¥å¡¼¥¤¥ó¥°¥ë¡¼¥ë¤Î̾Á°
TCA_OPTIONS	byte sequence	Qdisc ÆÃÍ­¤Î¥ª¥×¥·¥ç¥ó¤¬Â³¤¯
TCA_STATS	struct tc_stats	Qdisc ¤ÎÅý·×
TCA_XSTATS	qdisc specific	¥â¥¸¥å¡¼¥ëÆÃÍ­¤ÎÅý·×
TCA_RATE	struct tc_estimator	¥ì¡¼¥ÈÀ©¸Â

¤µ¤é¤Ë¡¢ qdisc ¥â¥¸¥å¡¼¥ëÆÃÍ­¤ÎÍÍ¡¹¤Ê°À­¤ò»ØÄê¤Ç¤­¤ë¡£ ¾ÜºÙ¤Ê¾ðÊó¤ÏŬÀڤʥ¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë¤ò¸«¤è¡£

RTM_NEWTCLASS, RTM_DELTCLASS, RTM_GETTCLASS

¥È¥é¥Õ¥£¥Ã¥¯¥¯¥é¥¹¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ ¤³¤ì¤é¤Î¥á¥Ã¥»¡¼¥¸¤Ï¡¢¾å½Ò¤Î struct tcmsg ¤òȼ¤¦¡£

RTM_NEWTFILTER, RTM_DELTFILTER, RTM_GETTFILTER

¥È¥é¥Õ¥£¥Ã¥¯¥Õ¥£¥ë¥¿¡¼¤Î¾ðÊó¤òÄɲᦺï½ü¡¦¼èÆÀ¤¹¤ë¡£ ¤³¤ì¤é¤Î¥á¥Ã¥»¡¼¥¸¤Ï¡¢¾å½Ò¤Î struct tcmsg ¤òȼ¤¦¡£

¥Ð¡¼¥¸¥ç¥ó

rtnetlink ¤Ï Linux 2.2 ¤Î¿·µ¡Ç½¤Ç¤¢¤ë¡£

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¤³¤Î man ¥Ú¡¼¥¸¤ÏÉÔ´°Á´¤Ç¤¢¤ë¡£

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cmsg(3), rtnetlink(3), ip(7), netlink(7)