/* * Copyright (c) 2002 Networks Associates Technology, Inc. * All rights reserved. * * This software was developed for the FreeBSD Project by Marshall * Kirk McKusick and Network Associates Laboratories, the Security * Research Division of Network Associates, Inc. under DARPA/SPAWAR * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS * research program. * * Copyright (c) 1980, 1989, 1993 * The Regents of the University of California. All rights reserved. * * 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. * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. * * $FreeBSD$ */ #include /* * The following two constants set the default block and fragment sizes. * Both constants must be a power of 2 and meet the following constraints: * MINBSIZE <= DESBLKSIZE <= MAXBSIZE * sectorsize <= DESFRAGSIZE <= DESBLKSIZE * DESBLKSIZE / DESFRAGSIZE <= 8 */ #define DFL_FRAGSIZE 4096 #define DFL_BLKSIZE 32768 /* * Cylinder groups may have up to MAXBLKSPERCG blocks. The actual * number used depends upon how much information can be stored * in a cylinder group map which must fit in a single file system * block. The default is to use as many as possible blocks per group. */ #define MAXBLKSPERCG 0x7fffffff /* desired fs_fpg ("infinity") */ /* * MAXBLKPG determines the maximum number of data blocks which are * placed in a single cylinder group. The default is one indirect * block worth of data blocks. */ #define MAXBLKPG(bsize) ((bsize) / sizeof(ufs2_daddr_t)) /* * Each file system has a number of inodes statically allocated. * We allocate one inode slot per NFPI fragments, expecting this * to be far more than we will ever need. */ #define NFPI 4 /* * variables set up by front end. */ extern int Eflag; /* Erase previous disk contents */ extern int Lflag; /* add a volume label */ extern int Nflag; /* run mkfs without writing file system */ extern int Oflag; /* build UFS1 format file system */ extern int Rflag; /* regression test */ extern int Uflag; /* enable soft updates for file system */ extern int jflag; /* enable soft updates journaling for filesys */ extern int Xflag; /* exit in middle of newfs for testing */ extern int Jflag; /* enable gjournal for file system */ extern int lflag; /* enable multilabel MAC for file system */ extern int nflag; /* do not create .snap directory */ extern int tflag; /* enable TRIM */ extern intmax_t fssize; /* file system size */ extern int sectorsize; /* bytes/sector */ extern int realsectorsize; /* bytes/sector in hardware*/ extern int fsize; /* fragment size */ extern int bsize; /* block size */ extern int maxbsize; /* maximum clustering */ extern int maxblkspercg; /* maximum blocks per cylinder group */ extern int minfree; /* free space threshold */ extern int opt; /* optimization preference (space or time) */ extern int density; /* number of bytes per inode */ extern int maxcontig; /* max contiguous blocks to allocate */ extern int maxbpg; /* maximum blocks per file in a cyl group */ extern int avgfilesize; /* expected average file size */ extern int avgfilesperdir; /* expected number of files per directory */ extern u_char *volumelabel; /* volume label for filesystem */ extern struct uufsd disk; /* libufs disk structure */ /* * To override a limitation in libufs, export the offset (in sectors) of the * partition on the underlying media (file or disk). The value is used as * an offset for all accesses to the media through bread(), which is only * invoked directly in this program. * For bwrite() we need a different approach, namely override the library * version with one defined here. This is because bwrite() is called also * by the library function sbwrite() which we cannot intercept nor want to * rewrite. As a consequence, the internal version of bwrite() adds the * partition offset itself when calling the underlying function, pwrite(). * * XXX This info really ought to go into the struct uufsd, at which point * we can remove the above hack. */ extern ufs2_daddr_t part_ofs; /* partition offset in blocks */ void mkfs (struct partition *, char *);