'\" t
.\" Don't change the first line, it tells man that tbl is needed.
.\" This man page is Copyright (C) 1999 Andi Kleen <ak@muc.de>.
.\" Permission is granted to distribute possibly modified copies
.\" of this page provided the header is included verbatim,
.\" and in case of nontrivial modification author and date
.\" of the modification is added to the header.
.\" $Id: netdevice.7,v 1.10 2001/08/15 18:01:06 hanataka Exp $
.\"
.\" Modified, 2004-11-25, mtk, formatting and a few wording fixes
.\"
.\" Japanese Version Copyright (c) 1999 NAKANO Takeo all rights reserved.
.\" Translated Mon 6 Dec 1999 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated Wed 14 Feb 2001 by Kentaro Shirakata <argrath@ub32.org>
.\"
.\"WORD		load balancing bundle	ʬ롼
.\"WORD		file descriptor		եǥץ
.\"WORD		capability		
.\"
.TH NETDEVICE  7 1999-05-02 "Linux" "Linux Programmer's Manual"
.SH ̾
netdevice \- Linux ͥåȥǥХؤ٥륢
.SH 
.B "#include <sys/ioctl.h>"
.br
.B "#include <net/if.h>"
.SH 
 man ڡǤϡͥåȥǥХꤹ뤿
Ѥ륽åȥ󥿡եˤĤƲ⤹롣

Linux ϥͥåȥǥХꤹ뤿ɸŪ ioctl 
ĤƤ롣ϤɤʥåȤΥեǥץˤ
Ѥ뤳ȤǤ롣եߥ꡼䥿פϲǤ褤
 ioctl 
.I ifreq
¤ΤϤ

.in +4n
.nf
struct ifreq {
    char ifr_name[IFNAMSIZ]; /* Interface name */
    union {
        struct sockaddr ifr_addr;
        struct sockaddr ifr_dstaddr;
        struct sockaddr ifr_broadaddr;
        struct sockaddr ifr_netmask;
        struct sockaddr ifr_hwaddr;
        short           ifr_flags;
        int             ifr_ifindex;
        int             ifr_metric;
        int             ifr_mtu;
        struct ifmap    ifr_map;
        char            ifr_slave[IFNAMSIZ];
        char            ifr_newname[IFNAMSIZ];
        char           *ifr_data;
    };
};

struct ifconf {
    int                 ifc_len; /* size of buffer */
    union {
        char           *ifc_buf; /* buffer address */
        struct ifreq   *ifc_req; /* array of structures */
    };
};
.fi
.in

̾桼ˤоݥǥХλϡ
.I ifr_name
˥󥿡ե̾򥻥åȤ뤳ȤˤäƹԤ
¾ι¤ΤƤΥФϡͭ롣
.SS ioctl
øɬספȵҤƤ ioctl ¹Ԥˤϡ
¸桼 ID  0 
.B CAP_NET_ADMIN
¤ɬפǤ롣줬Ƥʤ
.B EPERM
֤롣
.TP
.B SIOCGIFNAME
.I ifr_ifindex
ꡢ󥿡ե̾
.I ifr_name
֤Ϸ̤
.I ifr_name
Ȥ֤ͣ ioctl Ǥ롣
.TP
.B SIOCGIFINDEX
󥿡ե interface index 
.I ifr_ifindex
֤
.TP
.BR SIOCGIFFLAGS ", " SIOCSIFFLAGS
ǥХ active ե饰ɤޤꤹ롣
.I ifr_flags
ˤϰʲͤΥӥåȥޥ롣
.TS
tab(:);
c s
l l.
ǥХե饰
IFF_UP:󥿡եư档
IFF_BROADCAST:T{
ͭʥ֥ɥ㥹ȥɥ쥹åȤƤ롣
T}
IFF_DEBUG:ΥǥХåե饰
IFF_LOOPBACK:󥿡եϥ롼ץХåǤ롣
IFF_POINTOPOINT:T{
󥿡ե point-to-point 󥯤Ǥ롣
T}
IFF_RUNNING:꥽ƺѤߡ
IFF_NOARP:arp ץȥ뤬ʤ
IFF_PROMISC:󥿡ե promiscuous ⡼ɤǤ롣
IFF_NOTRAILERS:trailer Ѥ򤱤롣
IFF_ALLMULTI:ƤΥޥ㥹ȥѥåȤ롣
IFF_MASTER:ʬ롼פΥޥǤ롣
IFF_SLAVE:ʬ롼פΥ졼֤Ǥ롣
IFF_MULTICAST:ޥ㥹Ȥ򥵥ݡȤƤ롣
IFF_PORTSEL:ifmap ˤäƥǥפǤ롣
IFF_AUTOMEDIA:ưǥͭˤʤäƤ롣
IFF_DYNAMIC:T{
Υ󥿡եĤȡɥ쥹ϼ롣
T}
.TE
acitive ե饰ɤøɬפǤ롣
ɤ߽ФϤɤʥץǽǤ롣
.TP
.BR SIOCGIFMETRIC ", " SIOCSIFMETRIC
ǥХΥȥå
.I ifr_metric
ѤƼꤹ롣
ϤޤƤʤɤ߽ФȤ
.I ifr_metric
 0 򥻥åȤ֤ꡢꤷ褦Ȥ
.B EOPNOTSUPP
֤롣
.TP
.BR SIOCGIFMTU ", " SIOCSIFMTU
ǥХ MTU (Maximum Transfer Unit) 
.I ifr_mtu
ѤƼꤹ롣 MTU øɬפǤ롣
MTU ͤ򾮤ȥͥ뤬å夹뤫⤷ʤ
.TP
.BR SIOCGIFHWADDR ", " SIOCSIFHWADDR
ǥХΥϡɥɥ쥹
.I ifr_hwaddr
ѤƼꤹ롣
ϡɥɥ쥹
.I sockaddr
¤Τꤵ롣
.I sa_family
ˤ ARPHRD_* ǥХפꡢ
.I sa_data
ϥХ 0 Ϥޤ L2 ϡɥɥ쥹롣
ϡɥɥ쥹øɬפǤ롣
.TP
.B SIOCSIFHWBROADCAST
ǥХΥϡɥ֥ɥ㥹ȥɥ쥹
.I ifr_hwaddr
ͤꤹ롣ˤøɬפǤ롣
.TP
.BR SIOCGIFMAP ", " SIOCSIFMAP
󥿡եΥϡɥΥѥ᡼
.I ifr_map
ѤƼꤹ롣
ѥ᡼øɬפǤ롣

.in +4n
.nf
struct ifmap {
    unsigned long   mem_start;
    unsigned long   mem_end;
    unsigned short  base_addr;
    unsigned char   irq;
    unsigned char   dma;
    unsigned char   port;
};
.fi
.in

ifmap ¤ΤβϥǥХɥ饤Фȥƥ˰¸롣
.TP
.BR SIOCADDMULTI ", " SIOCDELMULTI
ǥХΥؤΥޥ㥹ȥե륿顢
.I ifr_hwaddr
Υɥ쥹ɲá롣ˤøɬפǤ롣
ˡ
.BR packet (7)
Dz⤵Ƥ롣
.TP
.BR SIOCGIFTXQLEN ", " SIOCSIFTXQLEN
ǥХ塼Ĺ
.I ifr_qlen
˼ꤹ롣塼ĹˤøɬפǤ롣
.TP
.B SIOCSIFNAME
.I ifr_name
ǻꤷ󥿡ե̾
.I ifr_newname
ѹ롣ˤøɬפǤ롣󥿡ե up Ƥʤ
ˤΤ߻ѤǤ롣
.TP
.B SIOCGIFCONF
󥿡ե(ȥ󥹥ݡ)ɥ쥹ΥꥹȤ֤
ߤΤȤߴΤ
.B AF_INET
(IPv4) եߥ꡼Υɥ쥹ΤߤǤ롣
桼
.I ifconf
¤Τ ioctl ΰȤϤ
ˤ
.I ifreq
¤ΤؤΥݥ󥿤Ǥ
.I ifc_req
ȡĹХñ̤ǻꤹ
.I ifc_len
ޤࡣ
ͥ ifreqs 򸽺ưƤƤ L3 󥿡եɥ쥹롣
.I ifr_name
ˤϥ󥿡ե̾ (eth0:1 ʤ) ꡢ
.I ifr_addr
ˤϥɥ쥹롣
ͥϼºݤĹ
.I ifc_len
֤
.I ifc_len ΥХåեĹƱä硢
Сե򵯤ƤǽΤǡ
ƤΥɥ쥹뤿ˤ礭ʥХåեǺƻԤ٤Ǥ롣
顼ʤä ioctl  0 ֤
顼ä \-1 ֤
Сեϥ顼Ȥϸʤʤ
.\" Slaving isn't supported in 2.2
.\" .
.\" .TP
.\" .BR SIOCGIFSLAVE ", " SIOCSIFSLAVE
.\" Get or set the slave device using
.\" .IR ifr_slave .
.\" Setting the slave device is a privileged operation.
.\" .PP
.\" FIXME add amateur radio stuff.
.PP
ۤȤɤΥץȥˤϡѤΥ󥿡եץ
ꤹ뤿ȼ ioctl ¸ߤ롣
ϳƥץȥ man ڡ򸫤衣
.PP
ˡǥХˤäƤϥץ饤١Ȥ ioctl 롣
ϤǤʤ
.SH 
̩ˤȡ
.B SIOCGIFCONF
 IP ͭǤꡢ
.BR ip (7)
°롣
.LP
ɥ쥹ʤäꡢ
.B IFF_RUNNING
ե饰åȤƤʤ󥿡ե̾
.I /proc/net/dev
ǸĤ뤳Ȥ롣
.LP
 IPV6 IP ɥ쥹
.I /proc/net

.BR rtnetlink (7)
ǸĤ뤳Ȥ롣
.SH Х
glibc 2.1 Ǥ
.I <net/if.h>

.I ifr_newname
ޥʤ
ȤꤢбȤơʲΥɤɲäƤȡ
.sp
.in +4n
.nf
#ifndef ifr_newname
#define ifr_newname     ifr_ifru.ifru_slave
#endif
.fi
.in
.RE
.SH Ϣ
.BR proc (5),
.BR capabilities (7),
.BR ip (7),
.BR rtnetlink (7)