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 */ 80 extern int Eflag; /* Erase previous disk contents */ 81 extern int Lflag; /* add a volume label */ 82 extern int Nflag; /* run mkfs without writing file system */ 83 extern int Oflag; /* build UFS1 format file system */ 84 extern int Rflag; /* regression test */ 85 extern int Uflag; /* enable soft updates for file system */ 86 extern int jflag; /* enable soft updates journaling for filesys */ 87 extern int Xflag; /* exit in middle of newfs for testing */ 88 extern int Jflag; /* enable gjournal for file system */ 89 extern int lflag; /* enable multilabel MAC for file system */ 90 extern int nflag; /* do not create .snap directory */ 91 extern int tflag; /* enable TRIM */ 92 extern intmax_t fssize; /* file system size */ 93 extern off_t mediasize; /* device size */ 94 extern int sectorsize; /* bytes/sector */ 95 extern int realsectorsize; /* bytes/sector in hardware*/ 96 extern int fsize; /* fragment size */ 97 extern int bsize; /* block size */ 98 extern int maxbsize; /* maximum clustering */ 99 extern int maxblkspercg; /* maximum blocks per cylinder group */ 100 extern int minfree; /* free space threshold */ 101 extern int metaspace; /* space held for metadata blocks */ 102 extern int opt; /* optimization preference (space or time) */ 103 extern int density; /* number of bytes per inode */ 104 extern int maxcontig; /* max contiguous blocks to allocate */ 105 extern int maxbpg; /* maximum blocks per file in a cyl group */ 106 extern int avgfilesize; /* expected average file size */ 107 extern int avgfilesperdir; /* expected number of files per directory */ 108 extern u_char *volumelabel; /* volume label for filesystem */ 109 extern 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 */ 125 extern ufs2_daddr_t part_ofs; /* partition offset in blocks */ 126 127 void mkfs (struct partition *, char *); 128