371 lines
14 KiB
Groff
371 lines
14 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)fs.5 8.2 (Berkeley) 4/19/94
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.\" %FreeBSD: src/share/man/man5/fs.5,v 1.17 2002/12/12 17:25:57 ru Exp %
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.\"
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.\" $FreeBSD$
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.\"
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.Dd April 19, 1994
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.Dt FS 5
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.Os
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.Sh ̾¾Î
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.Nm fs ,
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.Nm inode
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.Nd ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥Ü¥ê¥å¡¼¥à¤Î¥Õ¥©¡¼¥Þ¥Ã¥È
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.Sh ½ñ¼°
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.In sys/param.h
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.In ufs/ffs/fs.h
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.Pp
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.In sys/types.h
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.In sys/lock.h
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.In ufs/ufs/quota.h
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.In ufs/ufs/inode.h
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.Sh ²òÀâ
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¥Õ¥¡¥¤¥ë
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.Aq Pa fs.h
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¤È
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.Aq Pa inode.h
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¤Ï¡¢¥é¥ó¥À¥à¥¢¥¯¥»¥¹¥Ç¥Ð¥¤¥¹ (¥Ç¥£¥¹¥¯) ¾å¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥ª¥Ö¥¸¥§¥¯¥È
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¤Î´ðËÜ¥Õ¥©¡¼¥Þ¥Ã¥È¤òºîÀ®¡¢´ÉÍý¤¹¤ëºÝ¤Ë»È¤ï¤ì¤ë¤¤¤¯¤Ä¤«¤Î¹½Â¤ÂΡ¢
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ÄêµÁºÑ¤ßÊÑ¿ô¡¢¥Þ¥¯¥í¤òÀë¸À¤·¤Þ¤¹¡£
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.Pp
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¤³¤ì¤é¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ñ¥é¥á¡¼¥¿¤Ë¤Ê¤ê¤Þ¤¹¡£
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.Dv BBLOCK
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¤«¤é»Ï¤Þ¤ê
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.Dv BBSIZE
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.Pp
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¼ÂºÝ¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ï¡¢
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.Dv SBLOCK
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.Em ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
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.Aq Pa ufs/ffs/fs.h
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¤Ë¤¢¤ë°Ê²¼¤Î¹½Â¤ÂΤϡ¢¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤òµ½Ò¤·¤Æ¤¤¤Þ¤¹¡£
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.Bd -literal
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/*
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* FFS ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯
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*/
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struct fs {
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int32_t fs_firstfield; /* ÆâÉô¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯ÍѤ˻Ȥï¤ì¤ë¡¢Îò»ËŪ¤Ê */
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int32_t fs_unused_1; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥ê¥ó¥¯ºÑ¤ß¥ê¥¹¥È */
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ufs_daddr_t fs_sblkno; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àÆâ¤Î¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¥¢¥É¥ì¥¹ */
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ufs_daddr_t fs_cblkno; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àÆâ¤Î¥·¥ê¥ó¥À¥Ö¥í¥Ã¥¯¤Î¥ª¥Õ¥»¥Ã¥È */
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ufs_daddr_t fs_iblkno; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥àÆâ¤Î inode ¥Ö¥í¥Ã¥¯¤Î¥ª¥Õ¥»¥Ã¥È */
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ufs_daddr_t fs_dblkno; /* cg ¸å¤ÎºÇ½é¤Î¥Ç¡¼¥¿¤Î¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_cgoffset; /* ¥·¥ê¥ó¥ÀÆâ¤Î¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_cgmask; /* mod fs_ntrak ¤Î·×»»¤Ë»È¤ï¤ì¤ë */
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time_t fs_time; /* ºÇ¸å¤Ë½ñ¤¹þ¤Þ¤ì¤¿»þ¹ï */
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int32_t fs_size; /* fs Æâ¤Î¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_dsize; /* fs Æâ¤Î¥Ç¡¼¥¿¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_ncg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô */
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int32_t fs_bsize; /* fs Æâ¤Î´ðËÜ¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
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int32_t fs_fsize; /* fs Æâ¤Î¥Õ¥é¥°¥á¥ó¥È¥Ö¥í¥Ã¥¯¥µ¥¤¥º */
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int32_t fs_frag; /* fs ¤Î 1 ¥Ö¥í¥Ã¥¯Ãæ¤Î¥Õ¥é¥°¥á¥ó¥È¿ô */
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/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_minfree; /* ¥Õ¥ê¡¼¥Ö¥í¥Ã¥¯¤ÎºÇ¾®¥Ñ¡¼¥»¥ó¥Æ¡¼¥¸ */
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int32_t fs_rotdelay; /* ºÇŬ¤Ê¼¡¥Ö¥í¥Ã¥¯¤Î¤¿¤á¤Î ms ¿ô */
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int32_t fs_rps; /* 1 É䢤¿¤ê¤Î¥Ç¥£¥¹¥¯²óž */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
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int32_t fs_bmask; /* ``blkoff'' ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
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int32_t fs_fmask; /* ``fragoff'' ¥Õ¥é¥°¥á¥ó¥È¥ª¥Õ¥»¥Ã¥È¤Î·×»» */
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int32_t fs_bshift; /* ``lblkno'' ÏÀÍý¥Ö¥í¥Ã¥¯ÈÖ¹æ¤Î·×»» */
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int32_t fs_fshift; /* ``numfrags'' ¥Õ¥é¥°¥á¥ó¥È¿ô¤Î·×»» */
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/* °Ê²¼¤Ï¥³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_maxcontig; /* Ϣ³¤·¤¿¥Ö¥í¥Ã¥¯¤ÎºÇÂç¿ô */
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int32_t fs_maxbpg; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤¢¤¿¤ê¤ÎºÇÂç¥Ö¥í¥Ã¥¯¿ô */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
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int32_t fs_fragshift; /* ¥Õ¥é¥°¥á¥ó¥È¥·¥Õ¥È¤¹¤ë¥Ö¥í¥Ã¥¯ */
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int32_t fs_fsbtodb; /* fsbtodb ¤È dbtofsb ¥·¥Õ¥ÈÄê¿ô */
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int32_t fs_sbsize; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¤Î¼ÂºÝ¤ÎÂ礤µ */
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int32_t fs_csmask; /* csum ¥Ö¥í¥Ã¥¯¥ª¥Õ¥»¥Ã¥È */
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int32_t fs_csshift; /* csum ¥Ö¥í¥Ã¥¯¿ô */
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int32_t fs_nindir; /* NINDIR ¤ÎÃÍ */
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int32_t fs_inopb; /* INOPB ¤ÎÃÍ */
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int32_t fs_nspf; /* NSPF ¤ÎÃÍ */
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/* Ê̤Υ³¥ó¥Õ¥£¥®¥å¥ì¡¼¥·¥ç¥ó¥Ñ¥é¥á¡¼¥¿ */
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int32_t fs_optim; /* ºÇŬ²½¤ÎÁªÂò¡¢°Ê²¼¤ò»²¾È */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¥Ï¡¼¥É¥¦¥§¥¢¤«¤é°ú¤½Ð¤µ¤ì¤ë */
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int32_t fs_npsect; /* ͽÈ÷¤ò´Þ¤à¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
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int32_t fs_interleave; /* ¥Ï¡¼¥É¥¦¥§¥¢¥»¥¯¥¿¥¤¥ó¥¿¥ê¡¼¥Ö */
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int32_t fs_trackskew; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿ 0 ¤æ¤¬¤ß */
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/* fs_id ¤Ï̤»ÈÍѤΠfs_headswitch ¤È fs_trkseek ¤Î¥Õ¥£¡¼¥ë¥É¤Î¶õ´Ö¤òÊÝ»ý */
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int32_t fs_id[2]; /* ¥æ¥Ë¡¼¥¯¤Ê¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à ID */
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/* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤Î¿ô¤È¥µ¥¤¥º¤Ë¤è¤ê·è¤á¤é¤ì¤ë¥µ¥¤¥º */
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ufs_daddr_t fs_csaddr; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥Ö¥í¥Ã¥¯¥¢¥É¥ì¥¹ */
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int32_t fs_cssize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×Áí³çÎΰè¤Î¥µ¥¤¥º */
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int32_t fs_cgsize; /* ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¥µ¥¤¥º */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¥Ï¡¼¥É¥¦¥§¥¢¤«¤é°ú¤½Ð¤µ¤ì¤ë */
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int32_t fs_ntrak; /* ¥·¥ê¥ó¥À¤¢¤¿¤ê¤Î¥È¥é¥Ã¥¯¿ô */
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int32_t fs_nsect; /* ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
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int32_t fs_spc; /* ¥·¥ê¥ó¥À¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô */
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/* ¤³¤ì¤Ï¥Ç¥£¥¹¥¯¥É¥é¥¤¥Ð¥Ñ¡¼¥Æ¥£¥·¥ç¥óºîÀ®»þ¤Î¤â¤Î */
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int32_t fs_ncyl; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥·¥ê¥ó¥À¿ô */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¾¤Î¥Õ¥£¡¼¥ë¥É¤«¤é·×»»¤Ç¤¤ë */
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int32_t fs_cpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À¿ô */
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int32_t fs_ipg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î inode ¿ô */
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int32_t fs_fpg; /* ¥°¥ë¡¼¥×¤¢¤¿¤ê¤Î¥Ö¥í¥Ã¥¯¿ô * fs_frag */
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/* ¤³¤Î¥Ç¡¼¥¿¤Ï¥¯¥é¥Ã¥·¥å¸å¤ËºÆ·×»»¤µ¤ì¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤ */
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struct csum fs_cstotal;/* ¥·¥ê¥ó¥ÀÁí³ç¾ðÊó */
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/* °Ê²¼¤Î¥Õ¥£¡¼¥ë¥É¤Ï¥Þ¥¦¥ó¥È»þ¤Ë¥¯¥ê¥¢¤µ¤ì¤ë */
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int8_t fs_fmod; /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯Êѹ¹¥Õ¥é¥° */
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int8_t fs_clean; /* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥¯¥ê¡¼¥ó¤Ç¤¢¤ë¥Õ¥é¥° */
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int8_t fs_ronly; /* Æɤ߹þ¤ßÀìÍѤǥޥ¦¥ó¥È¤µ¤ì¤¿¥Õ¥é¥° */
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int8_t fs_flags; /* ¸½ºß̤»ÈÍѤΥե饰 */
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int8_t fs_fsmnt[MAXMNTLEN]; /* ¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë̾Á° */
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/* ¤³¤ì¤é¤Î¥Õ¥£¡¼¥ë¥É¤Ï¸½ºß¤Î¥Ö¥í¥Ã¥¯¤ÎÇÛÃÖ¾ðÊó¤òÊÝ»ý¤¹¤ë */
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int32_t fs_cgrotor; /* ºÇ¸å¤Ë¸¡º÷¤µ¤ì¤¿ cg */
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struct csum *fs_csp[MAXCSBUFS]; /* fs_cs ¾ðÊó¥Ð¥Ã¥Õ¥¡¤Î¥ê¥¹¥È */
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int32_t *fs_maxcluster;/* ³Æ¥·¥ê¥ó¥À¥°¥ë¡¼¥×¤ÎºÇÂ祯¥é¥¹¥¿ */
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int32_t fs_cpc; /* postbl Æâ¤Î¥µ¥¤¥¯¥ë¤¢¤¿¤ê¤Î¥·¥ê¥ó¥À */
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int16_t fs_opostbl[16][8]; /* µì²óž¥Ö¥í¥Ã¥¯¥ê¥¹¥È¥Ø¥Ã¥É */
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int32_t fs_sparecon[50]; /* ¾Íè¤Î¤¿¤á¤ËͽÌ󤵤줿Äê¿ô */
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int32_t fs_contigsumsize; /* ¥¯¥é¥¹¥¿Áí³çÇÛÎó¤ÎÂ礤µ */
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int32_t fs_maxsymlinklen; /* ÆâÉô¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤ÎºÇÂçĹ */
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int32_t fs_inodefmt; /* ¥Ç¥£¥¹¥¯¾å¤Î inode ¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
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u_int64_t fs_maxfilesize;/* ºÇÂçɽ¼¨²Äǽ¥Õ¥¡¥¤¥ë¥µ¥¤¥º */
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int64_t fs_qbmask; /* ~fs_bmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
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int64_t fs_qfmask; /* ~fs_fmask - 64 ¥Ó¥Ã¥È¥µ¥¤¥º¤Ç»È¤¦ */
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int32_t fs_state; /* fs_clean ¥Õ¥£¡¼¥ë¥É¤¬Í¸ú¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹ */
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int32_t fs_postblformat;/* °ÌÃ֥쥤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¤Î¥Õ¥©¡¼¥Þ¥Ã¥È */
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int32_t fs_nrpos; /* ²óž°ÌÃ֤οô */
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int32_t fs_postbloff; /* (u_int16) ²óž¥Ö¥í¥Ã¥¯¥ê¥¹¥È¥Ø¥Ã¥É */
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int32_t fs_rotbloff; /* (u_int8) ³Æ²óžËè¤Î¥Ö¥í¥Ã¥¯ */
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int32_t fs_magic; /* ¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
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u_int8_t fs_space[1]; /* ³Æ²óžËè¤Î¥Ö¥í¥Ã¥¯¤Î¥ê¥¹¥È */
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/* ¼ÂºÝ¤Ï¤â¤Ã¤ÈŤ¤ */
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};
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/*
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* ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¼±ÊÌ
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*/
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#define FS_MAGIC 0x011954 /* fast ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¸¥Ã¥¯¥Ê¥ó¥Ð */
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#define FS_OKAY 0x7c269d38 /* ¥¹¡¼¥Ñ¥Ö¥í¥Ã¥¯¥Á¥§¥Ã¥¯¥µ¥à */
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#define FS_42INODEFMT -1 /* 4.2BSD inode ¥Õ¥©¡¼¥Þ¥Ã¥È */
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#define FS_44INODEFMT 2 /* 4.4BSD inode ¥Õ¥©¡¼¥Ã¥È
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*/
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/*
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* ºÇŬ²½¤Î¤¿¤á¤ÎÁªÂò
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*/
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#define FS_OPTTIME 0 /* ºÇ¾®¥¢¥í¥±¡¼¥·¥ç¥ó»þ´Ö */
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#define FS_OPTSPACE 1 /* ºÇ¾®¥Ç¥£¥¹¥¯¥Õ¥é¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó */
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/*
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* ²óž¥ì¥¤¥¢¥¦¥È¥Æ¡¼¥Ö¥ë¥Õ¥©¡¼¥Þ¥Ã¥È¥¿¥¤¥×
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*/
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#define FS_42POSTBLFMT -1 /* 4.2BSD ²óž¥Æ¡¼¥Ö¥ë¥Õ¥©¡¼¥Þ¥Ã¥È */
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#define FS_DYNAMICPOSTBLFMT 1 /* ưŪ²óž¥Æ¡¼¥Ö¥ë¥Õ¥©¡¼¥Þ¥Ã¥È */
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.Ed
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.Pp
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