1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2002 Networks Associates Technology, Inc.
5 * All rights reserved.
6 *
7 * This software was developed for the FreeBSD Project by Marshall
8 * Kirk McKusick and Network Associates Laboratories, the Security
9 * Research Division of Network Associates, Inc. under DARPA/SPAWAR
10 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
11 * research program.
12 *
13 * Copyright (c) 1980, 1989, 1993
14 *	The Regents of the University of California.  All rights reserved.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 *    notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 *    notice, this list of conditions and the following disclaimer in the
23 *    documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * $FreeBSD$
41 */
42
43#include <libufs.h>
44
45/*
46 * The following two constants set the default block and fragment sizes.
47 * Both constants must be a power of 2 and meet the following constraints:
48 *	MINBSIZE <= DESBLKSIZE <= MAXBSIZE
49 *	sectorsize <= DESFRAGSIZE <= DESBLKSIZE
50 *	DESBLKSIZE / DESFRAGSIZE <= 8
51 */
52#define	DFL_FRAGSIZE	4096
53#define	DFL_BLKSIZE	32768
54
55/*
56 * Cylinder groups may have up to MAXBLKSPERCG blocks. The actual
57 * number used depends upon how much information can be stored
58 * in a cylinder group map which must fit in a single file system
59 * block. The default is to use as many as possible blocks per group.
60 */
61#define	MAXBLKSPERCG	0x7fffffff	/* desired fs_fpg ("infinity") */
62
63/*
64 * MAXBLKPG determines the maximum number of data blocks which are
65 * placed in a single cylinder group. The default is one indirect
66 * block worth of data blocks.
67 */
68#define MAXBLKPG(bsize)	((bsize) / sizeof(ufs2_daddr_t))
69
70/*
71 * Each file system has a number of inodes statically allocated.
72 * We allocate one inode slot per NFPI fragments, expecting this
73 * to be far more than we will ever need.
74 */
75#define	NFPI		2
76
77/*
78 * variables set up by front end.
79 */
80extern int	Eflag;		/* Erase previous disk contents */
81extern int	Lflag;		/* add a volume label */
82extern int	Nflag;		/* run mkfs without writing file system */
83extern int	Oflag;		/* build UFS1 format file system */
84extern int	Rflag;		/* regression test */
85extern int	Uflag;		/* enable soft updates for file system */
86extern int	jflag;		/* enable soft updates journaling for filesys */
87extern int	Xflag;		/* exit in middle of newfs for testing */
88extern int	Jflag;		/* enable gjournal for file system */
89extern int	lflag;		/* enable multilabel MAC for file system */
90extern int	nflag;		/* do not create .snap directory */
91extern int	tflag;		/* enable TRIM */
92extern intmax_t	fssize;		/* file system size */
93extern off_t	mediasize;	/* device size */
94extern int	sectorsize;	/* bytes/sector */
95extern int	realsectorsize;	/* bytes/sector in hardware*/
96extern int	fsize;		/* fragment size */
97extern int	bsize;		/* block size */
98extern int	maxbsize;	/* maximum clustering */
99extern int	maxblkspercg;	/* maximum blocks per cylinder group */
100extern int	minfree;	/* free space threshold */
101extern int	metaspace;	/* space held for metadata blocks */
102extern int	opt;		/* optimization preference (space or time) */
103extern int	density;	/* number of bytes per inode */
104extern int	maxcontig;	/* max contiguous blocks to allocate */
105extern int	maxbpg;		/* maximum blocks per file in a cyl group */
106extern int	avgfilesize;	/* expected average file size */
107extern int	avgfilesperdir;	/* expected number of files per directory */
108extern u_char	*volumelabel;	/* volume label for filesystem */
109extern struct uufsd disk;	/* libufs disk structure */
110
111/*
112 * To override a limitation in libufs, export the offset (in sectors) of the
113 * partition on the underlying media (file or disk). The value is used as
114 * an offset for all accesses to the media through bread(), which is only
115 * invoked directly in this program.
116 * For bwrite() we need a different approach, namely override the library
117 * version with one defined here. This is because bwrite() is called also
118 * by the library function sbwrite() which we cannot intercept nor want to
119 * rewrite. As a consequence, the internal version of bwrite() adds the
120 * partition offset itself when calling the underlying function, pwrite().
121 *
122 * XXX This info really ought to go into the struct uufsd, at which point
123 * we can remove the above hack.
124 */
125extern ufs2_daddr_t part_ofs;	/* partition offset in blocks */
126
127void mkfs (struct partition *, char *);
128