1/* $NetBSD: makefs.h,v 1.20 2008/12/28 21:51:46 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 * $FreeBSD$ 38 */ 39 40#ifndef _MAKEFS_H 41#define _MAKEFS_H 42 43#include <sys/stat.h> 44#include <err.h> 45 46/* 47 * fsnode - 48 * a component of the tree; contains a filename, a pointer to 49 * fsinode, optional symlink name, and tree pointers 50 * 51 * fsinode - 52 * equivalent to an inode, containing target file system inode number, 53 * refcount (nlink), and stat buffer 54 * 55 * A tree of fsnodes looks like this: 56 * 57 * name "." "bin" "netbsd" 58 * type S_IFDIR S_IFDIR S_IFREG 59 * next > > NULL 60 * parent NULL NULL NULL 61 * child NULL v 62 * 63 * name "." "ls" 64 * type S_IFDIR S_IFREG 65 * next > NULL 66 * parent ^ ^ (to "bin") 67 * child NULL NULL 68 * 69 * Notes: 70 * - first always points to first entry, at current level, which 71 * must be "." when the tree has been built; during build it may 72 * not be if "." hasn't yet been found by readdir(2). 73 */ 74 75enum fi_flags { 76 FI_SIZED = 1<<0, /* inode sized */ 77 FI_ALLOCATED = 1<<1, /* fsinode->ino allocated */ 78 FI_WRITTEN = 1<<2, /* inode written */ 79}; 80 81typedef struct { 82 uint32_t ino; /* inode number used on target fs */ 83 uint32_t nlink; /* number of links to this entry */ 84 enum fi_flags flags; /* flags used by fs specific code */ 85 struct stat st; /* stat entry */ 86} fsinode; 87 88typedef struct _fsnode { 89 struct _fsnode *parent; /* parent (NULL if root) */ 90 struct _fsnode *child; /* child (if type == S_IFDIR) */ 91 struct _fsnode *next; /* next */ 92 struct _fsnode *first; /* first node of current level (".") */ 93 uint32_t type; /* type of entry */ 94 fsinode *inode; /* actual inode data */ 95 char *symlink; /* symlink target */ 96 char *contents; /* file to provide contents */ 97 const char *root; /* root path */ 98 char *path; /* directory name */ 99 char *name; /* file name */ 100 int flags; /* misc flags */ 101} fsnode; 102 103#define FSNODE_F_HASSPEC 0x01 /* fsnode has a spec entry */ 104#define FSNODE_F_OPTIONAL 0x02 /* fsnode is optional */ 105 106/* 107 * fsinfo_t - contains various settings and parameters pertaining to 108 * the image, including current settings, global options, and fs 109 * specific options 110 */ 111typedef struct { 112 /* current settings */ 113 off_t size; /* total size */ 114 off_t inodes; /* number of inodes */ 115 uint32_t curinode; /* current inode */ 116 117 /* image settings */ 118 int fd; /* file descriptor of image */ 119 void *superblock; /* superblock */ 120 int onlyspec; /* only add entries in specfile */ 121 122 123 /* global options */ 124 off_t minsize; /* minimum size image should be */ 125 off_t maxsize; /* maximum size image can be */ 126 off_t freefiles; /* free file entries to leave */ 127 int freefilepc; /* free file % */ 128 off_t freeblocks; /* free blocks to leave */ 129 int freeblockpc; /* free block % */ 130 int needswap; /* non-zero if byte swapping needed */ 131 int sectorsize; /* sector size */ 132 int sparse; /* sparse image, don't fill it with zeros */ 133 off_t roundup; /* round image size up to this value */ 134 135 void *fs_specific; /* File system specific additions. */ 136} fsinfo_t; 137 138 139/* 140 * option_t - contains option name, description, pointer to location to store 141 * result, and range checks for the result. Used to simplify fs specific 142 * option setting 143 */ 144typedef struct { 145 const char *name; /* option name */ 146 int *value; /* where to stuff the value */ 147 int minimum; /* minimum for value */ 148 int maximum; /* maximum for value */ 149 const char *desc; /* option description */ 150} option_t; 151 152 153void apply_specfile(const char *, const char *, fsnode *, int); 154void dump_fsnodes(fsnode *); 155const char * inode_type(mode_t); 156fsnode * read_mtree(const char *, fsnode *); 157int set_option(option_t *, const char *, const char *); 158fsnode * walk_dir(const char *, const char *, fsnode *, fsnode *); 159void free_fsnodes(fsnode *); 160 161void ffs_prep_opts(fsinfo_t *); 162int ffs_parse_opts(const char *, fsinfo_t *); 163void ffs_cleanup_opts(fsinfo_t *); 164void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *); 165 166void cd9660_prep_opts(fsinfo_t *); 167int cd9660_parse_opts(const char *, fsinfo_t *); 168void cd9660_cleanup_opts(fsinfo_t *); 169void cd9660_makefs(const char *, const char *, fsnode *, fsinfo_t *); 170 171 172extern u_int debug; 173extern int dupsok; 174extern struct timespec start_time; 175 176/* 177 * If -x is specified, we want to exclude nodes which do not appear 178 * in the spec file. 179 */ 180#define FSNODE_EXCLUDE_P(opts, fsnode) \ 181 ((opts)->onlyspec != 0 && ((fsnode)->flags & FSNODE_F_HASSPEC) == 0) 182 183#define DEBUG_TIME 0x00000001 184 /* debug bits 1..3 unused at this time */ 185#define DEBUG_WALK_DIR 0x00000010 186#define DEBUG_WALK_DIR_NODE 0x00000020 187#define DEBUG_WALK_DIR_LINKCHECK 0x00000040 188#define DEBUG_DUMP_FSNODES 0x00000080 189#define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100 190#define DEBUG_FS_PARSE_OPTS 0x00000200 191#define DEBUG_FS_MAKEFS 0x00000400 192#define DEBUG_FS_VALIDATE 0x00000800 193#define DEBUG_FS_CREATE_IMAGE 0x00001000 194#define DEBUG_FS_SIZE_DIR 0x00002000 195#define DEBUG_FS_SIZE_DIR_NODE 0x00004000 196#define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000 197#define DEBUG_FS_POPULATE 0x00010000 198#define DEBUG_FS_POPULATE_DIRBUF 0x00020000 199#define DEBUG_FS_POPULATE_NODE 0x00040000 200#define DEBUG_FS_WRITE_FILE 0x00080000 201#define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000 202#define DEBUG_FS_MAKE_DIRBUF 0x00200000 203#define DEBUG_FS_WRITE_INODE 0x00400000 204#define DEBUG_BUF_BREAD 0x00800000 205#define DEBUG_BUF_BWRITE 0x01000000 206#define DEBUG_BUF_GETBLK 0x02000000 207#define DEBUG_APPLY_SPECFILE 0x04000000 208#define DEBUG_APPLY_SPECENTRY 0x08000000 209#define DEBUG_APPLY_SPECONLY 0x10000000 210 211 212#define TIMER_START(x) \ 213 if (debug & DEBUG_TIME) \ 214 gettimeofday(&(x), NULL) 215 216#define TIMER_RESULTS(x,d) \ 217 if (debug & DEBUG_TIME) { \ 218 struct timeval end, td; \ 219 gettimeofday(&end, NULL); \ 220 timersub(&end, &(x), &td); \ 221 printf("%s took %lld.%06ld seconds\n", \ 222 (d), (long long)td.tv_sec, \ 223 (long)td.tv_usec); \ 224 } 225 226 227#ifndef DEFAULT_FSTYPE 228#define DEFAULT_FSTYPE "ffs" 229#endif 230 231 232/* 233 * ffs specific settings 234 * --------------------- 235 */ 236 237#define FFS_EI /* for opposite endian support in ffs headers */ 238 239/* 240 * Write-arounds/compat shims for endian-agnostic support. 241 * These belong in the kernel if/when it's possible to mount 242 * filesystems w/ either byte order. 243 */ 244 245/* 246 * File system internal flags, also in fs_flags. 247 * (Pick highest number to avoid conflicts with others) 248 */ 249#define FS_SWAPPED 0x80000000 /* file system is endian swapped */ 250#define FS_INTERNAL 0x80000000 /* mask for internal flags */ 251 252#define FS_ISCLEAN 1 253 254#define DINODE1_SIZE (sizeof(struct ufs1_dinode)) 255#define DINODE2_SIZE (sizeof(struct ufs2_dinode)) 256 257#define MAXSYMLINKLEN_UFS1 ((NDADDR + NIADDR) * sizeof(ufs1_daddr_t)) 258#define MAXSYMLINKLEN_UFS2 ((NDADDR + NIADDR) * sizeof(ufs2_daddr_t)) 259 260#if (BYTE_ORDER == LITTLE_ENDIAN) 261#define DIRSIZ_SWAP(oldfmt, dp, needswap) \ 262 (((oldfmt) && !(needswap)) ? \ 263 DIRECTSIZ((dp)->d_type) : DIRECTSIZ((dp)->d_namlen)) 264#else 265#define DIRSIZ_SWAP(oldfmt, dp, needswap) \ 266 (((oldfmt) && (needswap)) ? \ 267 DIRECTSIZ((dp)->d_type) : DIRECTSIZ((dp)->d_namlen)) 268#endif 269 270#define cg_chkmagic_swap(cgp, ns) \ 271 (ufs_rw32((cgp)->cg_magic, (ns)) == CG_MAGIC) 272#define cg_inosused_swap(cgp, ns) \ 273 ((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_iusedoff, (ns)))) 274#define cg_blksfree_swap(cgp, ns) \ 275 ((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_freeoff, (ns)))) 276#define cg_clustersfree_swap(cgp, ns) \ 277 ((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_clusteroff, (ns)))) 278#define cg_clustersum_swap(cgp, ns) \ 279 ((int32_t *)((uintptr_t)(cgp) + ufs_rw32((cgp)->cg_clustersumoff, ns))) 280 281struct fs; 282void ffs_fragacct_swap(struct fs *, int, int32_t [], int, int); 283 284fsinode *link_check(fsinode *); 285 286#endif /* _MAKEFS_H */ 287