makefs.h revision 1.13
1 /* $NetBSD: makefs.h,v 1.13 2004/04/21 01:05:48 christos 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 #ifndef _MAKEFS_H 39 #define _MAKEFS_H 40 41 #if HAVE_NBTOOL_CONFIG_H 42 #include "nbtool_config.h" 43 #else 44 #define HAVE_STRUCT_STAT_ST_FLAGS 1 45 #define HAVE_STRUCT_STAT_ST_GEN 1 46 #define HAVE_STRUCT_STAT_ST_MTIMENSEC 1 47 #define HAVE_STRUCT_STATVFS_F_IOSIZE 1 48 #define HAVE_STRUCT_STAT_BIRTHTIME 1 49 #endif 50 51 #include <sys/stat.h> 52 #include <err.h> 53 54 /* 55 * fsnode - 56 * a component of the tree; contains a filename, a pointer to 57 * fsinode, optional symlink name, and tree pointers 58 * 59 * fsinode - 60 * equivalent to an inode, containing target file system inode number, 61 * refcount (nlink), and stat buffer 62 * 63 * A tree of fsnodes looks like this: 64 * 65 * name "." "bin" "netbsd" 66 * type S_IFDIR S_IFDIR S_IFREG 67 * next > > NULL 68 * parent NULL NULL NULL 69 * child NULL v 70 * 71 * name "." "ls" 72 * type S_IFDIR S_IFREG 73 * next > NULL 74 * parent ^ ^ (to "bin") 75 * child NULL NULL 76 * 77 * Notes: 78 * - first always points to first entry, at current level, which 79 * must be "." when the tree has been built; during build it may 80 * not be if "." hasn't yet been found by readdir(2). 81 */ 82 83 enum fi_flags { 84 FI_SIZED = 1<<0, /* inode sized */ 85 FI_ALLOCATED = 1<<1, /* fsinode->ino allocated */ 86 FI_WRITTEN = 1<<2, /* inode written */ 87 }; 88 89 typedef struct { 90 uint32_t ino; /* inode number used on target fs */ 91 uint32_t nlink; /* number of links to this entry */ 92 enum fi_flags flags; /* flags used by fs specific code */ 93 struct stat st; /* stat entry */ 94 } fsinode; 95 96 typedef struct _fsnode { 97 struct _fsnode *parent; /* parent (NULL if root) */ 98 struct _fsnode *child; /* child (if type == S_IFDIR) */ 99 struct _fsnode *next; /* next */ 100 struct _fsnode *first; /* first node of current level (".") */ 101 uint32_t type; /* type of entry */ 102 fsinode *inode; /* actual inode data */ 103 char *symlink; /* symlink target */ 104 char *name; /* file name */ 105 int flags; /* misc flags */ 106 } fsnode; 107 108 #define FSNODE_F_HASSPEC 0x01 /* fsnode has a spec entry */ 109 110 /* 111 * fsinfo_t - contains various settings and parameters pertaining to 112 * the image, including current settings, global options, and fs 113 * specific options 114 */ 115 typedef struct { 116 /* current settings */ 117 off_t size; /* total size */ 118 off_t inodes; /* number of inodes */ 119 uint32_t curinode; /* current inode */ 120 121 /* image settings */ 122 int fd; /* file descriptor of image */ 123 void *superblock; /* superblock */ 124 int onlyspec; /* only add entries in specfile */ 125 126 127 /* global options */ 128 off_t minsize; /* minimum size image should be */ 129 off_t maxsize; /* maximum size image can be */ 130 off_t freefiles; /* free file entries to leave */ 131 int freefilepc; /* free file % */ 132 off_t freeblocks; /* free blocks to leave */ 133 int freeblockpc; /* free block % */ 134 int needswap; /* non-zero if byte swapping needed */ 135 int sectorsize; /* sector size */ 136 137 /* ffs specific options */ 138 int bsize; /* block size */ 139 int fsize; /* fragment size */ 140 int cpg; /* cylinders per group */ 141 int cpgflg; /* cpg was specified by user */ 142 int density; /* bytes per inode */ 143 int ntracks; /* number of tracks */ 144 int nsectors; /* number of sectors */ 145 int rpm; /* rpm */ 146 int minfree; /* free space threshold */ 147 int optimization; /* optimization (space or time) */ 148 int maxcontig; /* max contiguous blocks to allocate */ 149 int rotdelay; /* rotational delay between blocks */ 150 int maxbpg; /* maximum blocks per file in a cyl group */ 151 int nrpos; /* # of distinguished rotational positions */ 152 int avgfilesize; /* expected average file size */ 153 int avgfpdir; /* expected # of files per directory */ 154 int version; /* filesystem version (1 = FFS, 2 = UFS2) */ 155 int maxbsize; /* maximum extent size */ 156 int maxblkspercg; /* max # of blocks per cylinder group */ 157 /* XXX: support `old' file systems ? */ 158 } fsinfo_t; 159 160 161 /* 162 * option_t - contains option name, description, pointer to location to store 163 * result, and range checks for the result. Used to simplify fs specific 164 * option setting 165 */ 166 typedef struct { 167 const char *name; /* option name */ 168 int *value; /* where to stuff the value */ 169 int minimum; /* minimum for value */ 170 int maximum; /* maximum for value */ 171 const char *desc; /* option description */ 172 } option_t; 173 174 175 void apply_specfile(const char *, const char *, fsnode *); 176 void dump_fsnodes(const char *, fsnode *); 177 const char * inode_type(mode_t); 178 int set_option(option_t *, const char *, const char *); 179 fsnode * walk_dir(const char *, fsnode *); 180 181 int ffs_parse_opts(const char *, fsinfo_t *); 182 void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *); 183 184 185 186 extern uint debug; 187 extern struct timespec start_time; 188 189 /* 190 * If -x is specified, we want to exclude nodes which do not appear 191 * in the spec file. 192 */ 193 #define FSNODE_EXCLUDE_P(opts, fsnode) \ 194 ((opts)->onlyspec != 0 && ((fsnode)->flags & FSNODE_F_HASSPEC) == 0) 195 196 #define DEBUG_TIME 0x00000001 197 /* debug bits 1..3 unused at this time */ 198 #define DEBUG_WALK_DIR 0x00000010 199 #define DEBUG_WALK_DIR_NODE 0x00000020 200 #define DEBUG_WALK_DIR_LINKCHECK 0x00000040 201 #define DEBUG_DUMP_FSNODES 0x00000080 202 #define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100 203 #define DEBUG_FS_PARSE_OPTS 0x00000200 204 #define DEBUG_FS_MAKEFS 0x00000400 205 #define DEBUG_FS_VALIDATE 0x00000800 206 #define DEBUG_FS_CREATE_IMAGE 0x00001000 207 #define DEBUG_FS_SIZE_DIR 0x00002000 208 #define DEBUG_FS_SIZE_DIR_NODE 0x00004000 209 #define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000 210 #define DEBUG_FS_POPULATE 0x00010000 211 #define DEBUG_FS_POPULATE_DIRBUF 0x00020000 212 #define DEBUG_FS_POPULATE_NODE 0x00040000 213 #define DEBUG_FS_WRITE_FILE 0x00080000 214 #define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000 215 #define DEBUG_FS_MAKE_DIRBUF 0x00200000 216 #define DEBUG_FS_WRITE_INODE 0x00400000 217 #define DEBUG_BUF_BREAD 0x00800000 218 #define DEBUG_BUF_BWRITE 0x01000000 219 #define DEBUG_BUF_GETBLK 0x02000000 220 #define DEBUG_APPLY_SPECFILE 0x04000000 221 #define DEBUG_APPLY_SPECENTRY 0x08000000 222 223 224 #define TIMER_START(x) \ 225 if (debug & DEBUG_TIME) \ 226 gettimeofday(&(x), NULL) 227 228 #define TIMER_RESULTS(x,d) \ 229 if (debug & DEBUG_TIME) { \ 230 struct timeval end, td; \ 231 gettimeofday(&end, NULL); \ 232 timersub(&end, &(x), &td); \ 233 printf("%s took %ld.%06ld seconds\n", \ 234 (d), td.tv_sec, td.tv_usec); \ 235 } 236 237 238 #ifndef DEFAULT_FSTYPE 239 #define DEFAULT_FSTYPE "ffs" 240 #endif 241 242 243 /* 244 * ffs specific settings 245 * --------------------- 246 */ 247 248 #define FFS_EI /* for opposite endian support in ffs headers */ 249 250 251 #endif /* _MAKEFS_H */ 252
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