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123 lines
5.3 KiB
C
123 lines
5.3 KiB
C
/*
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* Copyright (c) 2002 Networks Associates Technology, Inc.
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by Marshall
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* Kirk McKusick and Network Associates Laboratories, the Security
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* Research Division of Network Associates, Inc. under DARPA/SPAWAR
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* contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
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* research program.
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*
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* Copyright (c) 1980, 1989, 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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* 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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* $FreeBSD$
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*/
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#include <libufs.h>
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/*
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* The following two constants set the default block and fragment sizes.
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* Both constants must be a power of 2 and meet the following constraints:
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* MINBSIZE <= DESBLKSIZE <= MAXBSIZE
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* sectorsize <= DESFRAGSIZE <= DESBLKSIZE
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* DESBLKSIZE / DESFRAGSIZE <= 8
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*/
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#define DFL_FRAGSIZE 2048
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#define DFL_BLKSIZE 16384
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/*
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* Cylinder groups may have up to MAXBLKSPERCG blocks. The actual
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* number used depends upon how much information can be stored
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* in a cylinder group map which must fit in a single file system
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* block. The default is to use as many as possible blocks per group.
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*/
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#define MAXBLKSPERCG 0x7fffffff /* desired fs_fpg ("infinity") */
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/*
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* MAXBLKPG determines the maximum number of data blocks which are
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* placed in a single cylinder group. The default is one indirect
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* block worth of data blocks.
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*/
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#define MAXBLKPG(bsize) ((bsize) / sizeof(ufs2_daddr_t))
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/*
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* Each file system has a number of inodes statically allocated.
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* We allocate one inode slot per NFPI fragments, expecting this
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* to be far more than we will ever need.
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*/
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#define NFPI 4
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/*
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* variables set up by front end.
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*/
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extern int Eflag; /* Erase previous disk contents */
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extern int Lflag; /* add a volume label */
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extern int Nflag; /* run mkfs without writing file system */
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extern int Oflag; /* build UFS1 format file system */
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extern int Rflag; /* regression test */
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extern int Uflag; /* enable soft updates for file system */
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extern int Xflag; /* exit in middle of newfs for testing */
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extern int Jflag; /* enable gjournal for file system */
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extern int lflag; /* enable multilabel MAC for file system */
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extern int nflag; /* do not create .snap directory */
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extern int tflag; /* enable TRIM */
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extern intmax_t fssize; /* file system size */
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extern int sectorsize; /* bytes/sector */
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extern int realsectorsize; /* bytes/sector in hardware*/
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extern int fsize; /* fragment size */
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extern int bsize; /* block size */
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extern int maxbsize; /* maximum clustering */
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extern int maxblkspercg; /* maximum blocks per cylinder group */
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extern int minfree; /* free space threshold */
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extern int opt; /* optimization preference (space or time) */
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extern int density; /* number of bytes per inode */
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extern int maxcontig; /* max contiguous blocks to allocate */
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extern int maxbpg; /* maximum blocks per file in a cyl group */
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extern int avgfilesize; /* expected average file size */
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extern int avgfilesperdir; /* expected number of files per directory */
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extern u_char *volumelabel; /* volume label for filesystem */
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extern struct uufsd disk; /* libufs disk structure */
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/*
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* To override a limitation in libufs, export the offset (in sectors) of the
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* partition on the underlying media (file or disk). The value is used as
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* an offset for all accesses to the media through bread(), which is only
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* invoked directly in this program.
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* For bwrite() we need a different approach, namely override the library
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* version with one defined here. This is because bwrite() is called also
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* by the library function sbwrite() which we cannot intercept nor want to
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* rewrite. As a consequence, the internal version of bwrite() adds the
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* partition offset itself when calling the underlying function, pwrite().
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*
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* XXX This info really ought to go into the struct uufsd, at which point
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* we can remove the above hack.
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*/
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extern ufs2_daddr_t part_ofs; /* partition offset in blocks */
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void mkfs (struct partition *, char *);
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