.\"	dhcp-eval.5
.\"
.\" Copyright (c) 1996-2001 Internet Software Consortium.
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. Neither the name of The Internet Software Consortium nor the names
.\"    of its contributors may be used to endorse or promote products derived
.\"    from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
.\" DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
.\" CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" This software has been written for the Internet Software Consortium
.\" by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
.\" To learn more about the Internet Software Consortium, see
.\" ``http://www.isc.org/''.  To learn more about Vixie Enterprises,
.\" see ``http://www.vix.com''.   To learn more about Nominum, Inc., see
.\" ``http://www.nominum.com''.
.\" $FreeBSD: doc/ja_JP.eucJP/man/man5/dhcp-eval.5,v 1.2 2002/05/23 04:17:13 horikawa Exp $
.TH dhcp-eval 5
.SH ̾
dhcp-eval - ISC DHCP ˤդɾ
.SH 
Internet Software Consortium  DHCP 饤ȤȥФϡɤ
ѥåȤ˰¸դưԤǽϤޤ
դưʸˡ򤳤˼ޤ
.SH : դư
դưϡif, else, elsif ʸѤƻꤷޤ
ʸϡ̾ʸ (option ʸ) оǽʾϤɤˤǤоǽǤꡢ
ޤΤ褦ʸ뤳ȤǽǤ
ФˤʸϼΤ褦ˤʤ뤳Ȥ¿Ǥ礦:
.PP
.nf
if option dhcp-user-class = "accounting" {
  max-lease-time 17600;
  option domain-name "accounting.example.org";
  option domain-name-servers ns1.accounting.example.org, 
			     ns2.accounting.example.org;
} elsif option dhcp-user-class = "sales" {
  max-lease-time 17600;
  option domain-name "sales.example.org";
  option domain-name-servers ns1.sales.example.org, 
			     ns2.sales.example.org;
} elsif option dhcp-user-class = "engineering" {
  max-lease-time 17600;
  option domain-name "engineering.example.org";
  option domain-name-servers ns1.engineering.example.org, 
			     ns2.engineering.example.org;
} else {
  max-lease-time 600;
  option domain-name "misc.example.org";
  option domain-name-servers ns1.misc.example.org, 
			     ns2.misc.example.org;
}
.fi
.PP
饤¦ǤϡդɾϼΤ褦ˤʤǤ礦:
.PP
.nf
# example.org ϥե䥦 DNS ե륿Τǡ
# example.org ͥåȥ˷ҤȤΤߡ DNS ФѤޤ
# example.org ˷ҤΤǤϤʤ硢ʤ DNS ФͥѤޤ
if not option domain-name = "example.org" {
  prepend domain-name-servers 127.0.0.1;
}
.fi  
.PP
.B if
ʸ
.B elsif
³ʸϡȤƥ֡뼰ޤ
Ĥޤꡢʸϡɾȥ֡ͤη̤뼰ޤ
ɾ̤ˤʤȡ
.B if
ʸľΥ֥졼dz줿ʸ¹Ԥ졢³
.B elsif

.B else
ϥåפޤ
Ǥʤ硢ɾ̤ˤʤ elsif ˽в񤦤ޤǡ³
.B elsif
μåޤ
Τ褦᤬դȡľΥ֥졼ʸ¹Ԥ졢³
.B elsif

.B else
ϥåפޤ
٤Ƥ
.B if

.B elsif
᤬å줿ΤΤɤμ⿿ˤʤʤǡ
.B else
᤬¸ߤ硢
.B else
ľΥ֥졼ʸɾޤ
ˤƤϡɾ̤ˤʤ֡뼰ϵȤưޤ
.SH ֡뼰
ʲϡDHCP ʪǸߥݡȤƤ֡뼰ΰǤ
.PP
.I data-expression-1 \fB=\fI data-expression-2\fR
.RS 0.25i
.PP
\fB=\fR ڥ졼ϡ2 ĤΥǡӤξԤƱϿ֤
ƱǤʤϵ֤ޤ
դ⤷ϱդΤ줫ξ硢̤϶ˤʤޤ
.RE
.PP
.I boolean-expression-1 \fBand\fI boolean-expression-2\fR
.PP
.RS 0.25i
\fBand\fR ڥ졼ϡդΥ֡뼰ȱդΥ֡뼰ξɾ̤
ξ硢ɾޤ
Ǥʤ硢ɾޤ
դ⤷ϱդΤ줫ξ硢̤϶ˤʤޤ
.RE
.PP
.I boolean-expression-1 \fBor\fI boolean-expression-2\fR
.PP
.RS 0.25i
\fBor\fR ڥ졼ϡդΥ֡뼰ȱդΥ֡뼰Τ줫ɾ̤
ξ硢ɾޤ
Ǥʤ硢ɾޤ
դ⤷ϱդΤ줫ξ硢̤϶ˤʤޤ
.RE
.PP
.B not \fIboolean-expression
.PP
.RS 0.25i
\fBnot\fR ڥ졼ϡ\fIboolean-expression\fR ɾ̤ξ硢
ɾޤ
ޤ\fIboolean-expression\fR ɾ̤ξ硢ɾޤ
\fIboolean-expression\fR ɾ̤ξ硢̤ޤˤʤޤ
.RE
.PP
.B exists \fIoption-name\fR
.PP
.RS 0.25i
\fBexists\fR ϡоݤ DCHP ѥåˡ
ꤵ줿ץ¸ߤ硢֤ޤ
.RE
.B known
.PP
.RS 0.25i
\fBknown\fR ϡ׵бΥ饤ȤΤξ硢
ʤۥ硢֤ޤ
.RE
.B static
.PP
.RS 0.25i
\fBstatic\fR ϡ׵бΥ饤ȤؤΥ꡼Ƥ
Ūɥ쥹ƤˤΤǤä硢֤ޤ
.RE
.SH ǡ
ҤΥ֡뼰ϡǡɾ̤˰¸ޤ
ǡ򤳤˼ޤ
.PP
.B substring (\fIdata-expr\fB, \fIoffset\fB, \fIlength\fB)\fR
.PP
.RS 0.25i
\fBsubstring\fR ڥ졼ϡǡɾ
ɾ \fIoffset\fR ХȤ鳫Ϥ \fIlength\fR Хȷ³
֥ȥ󥰤֤ޤ
\fIoffset\fR  \fIlength\fR ϶˿ͼǤ
\fIdata-expr\fR, \fIoffset\fR, \fIlength\fR Τ줫ɾ硢
̤ޤˤʤޤ
\fIoffset\fR ɾ줿ǡĹʾǤ硢
Ĺ 0 Υǡʸ֤ޤ
\fIlength\fI ɾ줿ǡ \fIoffset\fR Ĺ礭硢
ɾ줿ǡ \fIoffset\fR 齪üޤǤǡޤ
ǡʸ֤ޤ
.RE
.PP
.B suffix (\fIdata-expr\fB, \fIlength\fB)\fR
.PP
.RS 0.25i
\fBsuffix\fR ڥ졼ϡ\fIdata-expr\fR ɾ
ɾ̤κǸ \fIlength\fR ХȤ֤ޤ
\fIlength\fR ϿͼǤ
\fIdata-expr\fR ޤ \fIlength\fR ɾ̤ξ硢
̤ޤˤʤޤ
\fIsuffix\fR
(: \fIlength\fR Ȼפޤ)
ɾ̤ɾ줿ǡĹ礭硢
ɾ줿ǡ֤ޤ
.\" horikawa@jp.FreeBSD.org 2002/04/29
.RE
.PP
.B option \fIoption-name\fR
.PP
.RS 0.25i
\fBoption\fR ڥ졼ϡФΥѥåȤΡ
ꤷץƤ֤ޤ
.RE
.PP
.B config-option \fIoption-name\fR
.PP
.RS 0.25i
\fBconfig-option\fR ڥ졼ϡꤷץФ
DHCP 饤ȤޤϥФФ褦ꤵ줿֤ͤޤ
.RE
.PP
.B hardware
.PP
.RS 0.25i
\fBhardware\fR ڥ졼ϡǡȥ󥰤֤ޤ
ǡȥ󥰤κǽǤϡ
оݥѥåȤͥåȥ󥿥եΥפǤꡢ
³Ǥϡ饤ȤΥإɥ쥹Ǥ
ѥåȤ¸ߤʤ⤷ RFC2131 \fIhlen\fR եɤ̵ʾ硢
̤϶ˤʤޤ
ϡɥפˤϡͥå (1)ȡ (6)
FDDI (8) ޤޤޤ
ϡɥפ IETF ˤäƵꤵ졢
ɤΤ褦˥פοͤ뤫ξܺ٤ RFC2131
(ISC DHCP ʪǤϡdoc/ ֥ǥ쥯ȥˤޤ) 򻲾ȤƤ
.RE
.PP
.B packet (\fIoffset\fB, \fIlength\fB)\fR
.PP
.RS 0.25i
\fBpacket\fR ڥ졼ϡоݥѥåȤλʬ֤
оݥѥåȤ̵ʸ̮Ǥ϶֤ޤ
\fIoffset\fR  \fIlength\fR ϡ
\fBsubstring\fR ڥ졼ƱͤˡѥåȤƤŬѤޤ
.RE
.PP
.I string
.PP
.RS 0.25i
Ȥdz줿ȥ󥰤ϥǡȤƻǽǤꡢ
Ȥδ֤ ASCII 󥳡ɤΥƥȤ֤ޤ
Хåå ('\\') ʸ C ץΤ褦̰ޤ:
ʤ '\\t' ϥ֤'\\r' '\\n' ϲԤ'\\b' ϥ٥
̣ޤ
8 ʿͤ '\\nnn' ǻǽǤꡢnnn  0 ʾ 0377 ʲ 8 ʿͤǤ
16 ʿͤ '\\xnn' ǻǽǤꡢnn  0 ʾ 0xff ʲ 16 ʿͤǤ
.\" ͤϰϤθˤĤƤϡMurray ͳǥݡȺ
.\" horikawa@jp.FreeBSD.org 2002/05/01
.RE
.PP
.I colon-seperated hexadecimal list
.PP
.RS 0.25i
Ƕڤ줿 16 ʿΥƥåͤΥꥹȤ
ǡȤƻǽǤ
.RE
.PP
.B concat (\fIdata-expr1\fB, ..., \fIdata-exprN\fB)\fR
.RS 0.25i
ɾ졢ɾּ̤ν֤Ϣ뤵ޤ
ּΤ줫ɾ̤ˤʤ硢Ϣη̤϶ˤʤޤ
.RE
.PP
.B reverse (\fInumeric-expr1\fB, \fIdata-expr2\fB)\fR
.RS 0.25i
2 Ĥμɾ졢ǡɾ̤ξȿžޤ
ȿžϡͼǻꤵ礭ñ̤ǹԤޤ
㤨Сͼɾ̤ 4 ξǡ
ǡɾ̤ 12 ХȤˤʤ硢
reverse ɾ̤ϡΤ褦 12 ХȤΥǡˤʤޤ
ʤϤκǸ 4 Хȡ 4Хȡǽ 4 ХȤ
ˤʤޤ
.RE
.PP
.B leased-address
.RS 0.25i
ʤʸ̮ˤƤ⡢
׵оݤȤʤäƤ륯饤Ȥ IP ɥ쥹ƺѤξ硢
 IP ɥ쥹֤ޤ
.RE
.PP
.B binary-to-ascii (\fInumeric-expr1\fB, \fInumeric-expr2\fB,
.B \fIdata-expr1\fB,\fR \fIdata-expr2\fB)\fR
.RS 0.25i
data-expr2 ɾ̤ƥȥȥ󥰤Ѵޤ
ΥƥȥȥǤϡ
data-expr2 ɾ̤γǤ1 Ĥοͤˤʤޤ
ƿͤϡ줾졢data-expr1 ɾ̤ˤäƶڤޤ
numeric-expr1 ɾ̤ϡ (2  16) Ǥꡢ
δ˿ͤѴޤ
numeric-expr2 ɾ̤ϡƿͤΥӥåǤꡢ
8, 16, 32 Τ줫Ǥ
.PP
ǽ 3 ĤΥפμȤơ
饤Ȥ˳Ƥ줿 IP ɥ쥹Ѥ
PTR 쥳ɤ̾뤿˻Ѳǽʼ򼨤ޤ
.RE
.PP
.nf
        concat (binary-to-ascii (10, 8, ".",
                                 reverse (1, leased-address)),
                ".in-addr.arpa.");

.fi
.PP
.B encode-int (\fInumeric-expr\fB, \fIwidth\fB)\fR
.RS 0.25i
ͼɾ졢ꤵ줿Υǡȥ󥰤
ͥåȥХȽ (Ǿ̥ХȤǽ) ǥ󥳡ɤޤ
ͼɾ̤ͤˤʤ硢̤ޤǤ
.RE
.\"  ".RE" ̵ȡǥȤʤǤ
.\" horikawa@jp.FreeBSD.org 2002/04/29
.PP
.B pick-first-value (\fIdata-expr1\fR [ ... \fIexpr\fRn ] \fB)\fR
.RS 0.25i
pick-first-value ؿϡǤոĤΥǡޤ
ꥹȤƬƼɾ졢
ɾ̤ǤϤʤդޤǤ줬³ޤ
μ֤졢μ˸³뼰ɾޤ
٤Ƥμɾ̤ξ硢֤ͤޤ
.RE
.PP
.B host-decl-name
.RS 0.25i
host-decl-name ؿϡ׵оݤȤʤäƤ륯饤Ȥ˥ޥå롢
ۥ֤̾ޤ
ɤΥۥޥåʤ硢̤϶ˤʤޤ
.RE
.SH ͼ
ͼϡɾ̤ˤʤ뼰Ǥ
̤ˡκ祵 32 ӥå̤ǤȲꤹ٤ǤϤޤ󤬡
٤ 32 ӥåȤۤ뤳ȤϤޤ
.PP
.B extract-int (\fIdata-expr\fB, \fIwidth\fB)\fR
.PP
.RS 0.25i
\fBextract-int\fR ڥ졼ϡͥåȥХȽ
ꤷǡɾ̤Фޤ
ϡФΥӥåǤ
ߡݡȤƤ 8, 16, 32 Τ줫Ǥ
ǡɾ̤ꤷ礭ȼФΤ
ʬʥӥåȤ󶡤ʤ硢֤ͤޤ
.RE
.PP
.B lease-time
.PP
.RS 0.25i
ߤΥ꡼δ֤Ǥ
ʤߤλȥ꡼δ¤ڤȤκǤ
.RE
.PP
.I number
.PP
.RS 0.25i
0 ɽǽʺ祵ϰϤǤդοͤ򡢿ͼȤƻǽǤ
.RE
.PP
.B client-state
.PP
.RS 0.25i
оݤΥ饤Ȥθߤξ֤Ǥ
DHCP 饤եˤƤΤͭѤǤ
ͤϼ̤Ǥ:
.TP 2
.I \(bu
Booting - DHCP 饤Ȥ INIT ֤Ǥꡢ
IP ɥ쥹ޤޤ
å DHCPDISCOVER Ǥꡢ
ϥ֥ɥ㥹Ȥޤ
.TP
.I \(bu
Reboot - DHCP 饤Ȥ INIT-REBOOT ֤Ǥ
IP ɥ쥹ޤޤѤƤޤ
å DHCPREQUEST Ǥꡢ
ϥ֥ɥ㥹Ȥޤ
ʹʤȡ饤ȤϤΥɥ쥹˥Хɤ
BOUND ֤ܤޤ
.TP
.I \(bu
Select - DHCP 饤Ȥ SELECTING ֤Ǥ
ʤȤ 1 Ĥ DHCPOFFER åϼޤ
¾ DHCPOFFER å¾ΥФ뤫ɤԤäƤޤ
SELECTING ֤Ǥϥåޤ
.TP
.I \(bu
Request - DHCP 饤Ȥ REQUESTING ֤Ǥ
ʤȤ 1 Ĥ DHCPOFFER å
ΤΤɤ׵᤹뤫򤷤ޤ
å DHCPREQUEST åǤꡢ
ϥ֥ɥ㥹Ȥޤ
.TP
.I \(bu
Bound - DHCP 饤Ȥ BOUND ֤Ǥ
IP ɥ쥹ͭƤޤ
ξ֤Ǥϥåޤ
.TP
.I \(bu
Renew - DHCP 饤Ȥ RENEWING ֤Ǥ
IP ɥ쥹ͭƤꡢ򹹿뤿˥Ф³ߤƤޤ
å DHCPREQUEST åǤꡢ
ϥФľܥ˥㥹Ȥޤ
.TP
.I \(bu
Rebind - DHCP 饤Ȥ REBINDING ֤Ǥ
IP ɥ쥹ͭƤꡢ
򹹿뤿ǤդΥФ³ߤƤޤ
å DHCPREQUEST åǤꡢ
ϥ֥ɥ㥹Ȥޤ
.RE
.SH : 
ʸѤơɸͥ˾ǽǤ
ʸϡάǽ priority
(\fBfatal\fR, \fBerror\fR, \fBinfo\fR, \fBdebug\fR Τ줫) ȡ
ǡޤ
.PP
.B log (\fIpriority\fB, \fIdata-expr\fB)\fR
.\" "\FB"  "\fB" 
.\" horikawa@jp.FreeBSD.org 2002/04/29
.PP
ʸϡñΥǡΤ߼ޤ
ʣΥǡͤϤ硢
\fBconcat\fR ڥ졼ѤƤϢ뤹ɬפޤ
.RE
.SH : ưŪ DNS 
.PP
DHCP 饤ȤȥФϡ
ưŪ˥ɥᥤ͡ॷƥ򹹿ǽϤޤ
եˡɤΤ褦˥ɥᥤ͡ॷƥ򹹿ߤ
ǽǤ
 RFC 2136 ˽äƤ뤿ᡢ
RFC 2136 򥵥ݡȤ DNS Фϡ
DHCP ФιդǽȻפޤ
.SH ƥ
TSIG  DNSSEC ϤޤݡȤƤޤ
DHCP Фޤϥ饤Ȥιդ褦
DNS Фꤹ硢¤̵Ф
DNS Ф򻯤Ȥˤʤ뤫⤷ޤ
򤱤뤿˺Ǥɤˡϡ
IP ɥ쥹١Υѥåȥե륿Ѥơ
¤̵ۥȤι׵ȯԤ޻ߤ뤳ȤǤ
餫ˡǤϥ饤ȤιФ륻ƥ󶡤ˡ
ޤ
Τˤ TSIG  DNSSEC ɬפǤ
 DHCP ʪˤϤޤޤޤƤޤ
.PP
ưŪ DNS (DDNS) ϡ\fBdns-update\fR Ѥ뤳ȤǼ¹Ԥޤ
\fBdns-update\fR ϡ֡뼰Ǥꡢ4 ĤΥѥ᡼ޤ
ȡ̤Ͽˤʤޤ
Ԥȡ̤ϵˤʤޤ
4 ĤΥѥ᡼ϡ꥽쥳ɥ (RR)
RR κաRR αա쥳ɤŬѤ٤ ttl Ǥ
δؿκǤñʻϡdhcpd.conf եλˤꡢ
ʤˤ뤫ҤƤޤ
ǤϡʣμѤơ
\fBdns-update\fR ѤΰƤޤ
.PP
Ǥϡǽ \fBdns-update\fR ؤ 1 ܤΰϡ
A RR פɾǡǤ
2 ܤΰϡDHCP host-name ץ
ɥᥤ󡢤ξ "ssd.example.net"
ޤƥȥȥ󥰤Ϣ뤹뤳Ȥǡۤޤ
3 ܤΰϡ饤Ȥ˳Ƥ줿ɥ쥹
32 ӥåȤοͤƥХȤ "."  Ƕڤä ASCII ʸѴ뤳Ȥǡ
ۤޤ
4 ܤΰ TTL ϡ꡼λĤ֤Ǥ
(ޤ
ʤʤ DNS Фϡ׵ФƤĤ⤳ TTL ͤϤƤޤǤ
ϡ꡼ڤοǤäƤǤ)
.PP
ǽ \fBdns-update\fR ʸȡ
³ 2 ܤιˤ PTR RR 󥹥ȡ뤵ޤ
PTR 쥳ɤΥ󥹥ȡϡA RR Υ󥹥ȡƱͤǤ
쥳ɤκդϥ꡼줿ɥ쥹դˤ ".in-addr.arpa" 
礵줿ΤǤ
դϡɥ쥹Υ꡼襯饤ȤΡʷǤΥɥᥤ̾Ǥ
.SH Ϣ
dhcpd.conf(5), dhcpd.leases(5), dhclient.conf(5), dhcp-eval(5), dhcpd(8),
dhclient(8), RFC2132, RFC2131
.SH 
Internet Software Consortium DHCP Distribution
ϡVixie Labs ȤηΤȤǡTed Lemon Ҥޤ
ܥץȤλϡInternet Software Consortium 󶡤ޤ
Internet Software Consortium ˴ؤϡ
.B http://www.isc.org
ˤޤ