makefs.h revision 1.3
1 /* $NetBSD: makefs.h,v 1.3 2001/11/25 11:22:09 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Luke Mewburn for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #include <sys/stat.h> 39 40 41 /* 42 * fsnode - a component of the tree which contains information about the 43 * file system. 44 * 45 * A tree of these looks like this: 46 * 47 * name "." "bin" "netbsd" 48 * type S_IFDIR S_IFDIR S_IFREG 49 * next > > NULL 50 * parent NULL NULL NULL 51 * child NULL v 52 * 53 * name "." "ls" 54 * type S_IFDIR S_IFREG 55 * next > NULL 56 * parent ^ ^ (to "bin") 57 * child NULL NULL 58 * 59 * Notes: 60 * - first always points to first entry, at current level, which 61 * must be "." when the tree has been built; during build it may 62 * not be if "." hasn't yet been found by readdir(2). 63 * 64 * - if dup is not NULL, it points to an fsnode that this is a 65 * duplicate of; only relevant for non directories with > 1 link 66 */ 67 typedef struct _fsnode { 68 struct _fsnode *parent; /* parent (NULL if root) */ 69 struct _fsnode *child; /* child (if type == S_IFDIR) */ 70 struct _fsnode *next; /* next */ 71 struct _fsnode *first; /* first node of current level (".") */ 72 struct stat statbuf; /* stat entry */ 73 char *symlink; /* symlink target */ 74 char *name; /* file name */ 75 struct _fsnode *dup; /* entry this is a duplicate of 76 (when statbuf.st_nlink > 1) */ 77 uint32_t nlink; /* number of links to this entry */ 78 uint32_t type; /* type of entry */ 79 uint32_t ino; /* inode number used on target fs */ 80 } fsnode; 81 82 83 /* 84 * fsinfo_t - contains various settings and parameters pertaining to 85 * the image, including current settings, global options, and fs 86 * specific options 87 */ 88 typedef struct { 89 /* current settings */ 90 off_t size; /* total size */ 91 off_t inodes; /* number of inodes */ 92 uint32_t curinode; /* current inode */ 93 94 /* image settings */ 95 int fd; /* file descriptor of image */ 96 void *superblock; /* superblock */ 97 98 99 /* global options */ 100 off_t minsize; /* minimum size image should be */ 101 off_t maxsize; /* maximum size image can be */ 102 off_t freefiles; /* free file entries to leave */ 103 int freefilepc; /* free file % */ 104 off_t freeblocks; /* free blocks to leave */ 105 int freeblockpc; /* free block % */ 106 int needswap; /* non-zero if byte swapping needed */ 107 int sectorsize; /* sector size */ 108 109 /* ffs specific options */ 110 int bsize; /* block size */ 111 int fsize; /* fragment size */ 112 int cpg; /* cylinders per group */ 113 int density; /* bytes per inode */ 114 int ntracks; /* number of tracks */ 115 int nsectors; /* number of sectors */ 116 int rpm; /* rpm */ 117 int minfree; /* free space threshold */ 118 int optimization; /* optimization (space or time) */ 119 int maxcontig; /* max contiguous blocks to allocate */ 120 int rotdelay; /* rotational delay between blocks */ 121 int maxbpg; /* maximum blocks per file in a cyl group */ 122 int nrpos; /* # of distinguished rotational positions */ 123 int avgfilesize; /* expected average file size */ 124 int avgfpdir; /* expected # of files per directory */ 125 /* XXX: support `old' file systems ? */ 126 } fsinfo_t; 127 128 129 /* 130 * option_t - contains option name, description, pointer to location to store 131 * result, and range checks for the result. Used to simplify fs specific 132 * option setting 133 */ 134 typedef struct { 135 const char *name; /* option name */ 136 int *value; /* where to stuff the value */ 137 int minimum; /* minimum for value */ 138 int maximum; /* maximum for value */ 139 const char *desc; /* option description */ 140 } option_t; 141 142 143 void apply_specfile(const char *, const char *, fsnode *); 144 void dump_fsnodes(const char *, fsnode *); 145 const char * inode_type(mode_t); 146 int set_option(option_t *, const char *, const char *); 147 fsnode * walk_dir(const char *, fsnode *); 148 149 int ffs_parse_opts(const char *, fsinfo_t *); 150 void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *); 151 152 153 154 extern u_int debug; 155 extern struct timespec start_time; 156 157 #define DEBUG_TIME 0x00000001 158 /* debug bits 1..3 unused at this time */ 159 #define DEBUG_WALK_DIR 0x00000010 160 #define DEBUG_WALK_DIR_NODE 0x00000020 161 #define DEBUG_WALK_DIR_LINKCHECK 0x00000040 162 #define DEBUG_DUMP_FSNODES 0x00000080 163 #define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100 164 #define DEBUG_FS_PARSE_OPTS 0x00000200 165 #define DEBUG_FS_MAKEFS 0x00000400 166 #define DEBUG_FS_VALIDATE 0x00000800 167 #define DEBUG_FS_CREATE_IMAGE 0x00001000 168 #define DEBUG_FS_SIZE_DIR 0x00002000 169 #define DEBUG_FS_SIZE_DIR_NODE 0x00004000 170 #define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000 171 #define DEBUG_FS_POPULATE 0x00010000 172 #define DEBUG_FS_POPULATE_DIRBUF 0x00020000 173 #define DEBUG_FS_POPULATE_NODE 0x00040000 174 #define DEBUG_FS_WRITE_FILE 0x00080000 175 #define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000 176 #define DEBUG_FS_MAKE_DIRBUF 0x00200000 177 #define DEBUG_FS_WRITE_INODE 0x00400000 178 #define DEBUG_BUF_BREAD 0x00800000 179 #define DEBUG_BUF_BWRITE 0x01000000 180 #define DEBUG_BUF_GETBLK 0x02000000 181 #define DEBUG_APPLY_SPECFILE 0x04000000 182 #define DEBUG_APPLY_SPECENTRY 0x08000000 183 184 185 #define TIMER_START(x) \ 186 if (debug & DEBUG_TIME) \ 187 gettimeofday(&(x), NULL) 188 189 #define TIMER_RESULTS(x,d) \ 190 if (debug & DEBUG_TIME) { \ 191 struct timeval end, td; \ 192 gettimeofday(&end, NULL); \ 193 timersub(&end, &(x), &td); \ 194 printf("%s took %ld.%06ld seconds\n", \ 195 (d), td.tv_sec, td.tv_usec); \ 196 } 197 198 199 #ifndef DEFAULT_FSTYPE 200 #define DEFAULT_FSTYPE "ffs" 201 #endif 202
Indexes created Wed Sep 24 05:09:52 GMT 2025