/* $OpenBSD: makefs.h,v 1.13 2021/10/06 00:40:39 deraadt Exp $ */ /* $NetBSD: makefs.h,v 1.36 2015/11/25 00:48:49 christos Exp $ */ /* * Copyright (c) 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Luke Mewburn for Wasabi Systems, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ #ifndef _MAKEFS_H #define _MAKEFS_H #include <sys/stat.h> #include <err.h> /* * fsnode - * a component of the tree; contains a filename, a pointer to * fsinode, optional symlink name, and tree pointers * * fsinode - * equivalent to an inode, containing target file system inode number, * refcount (nlink), and stat buffer * * A tree of fsnodes looks like this: * * name "." "bin" "netbsd" * type S_IFDIR S_IFDIR S_IFREG * next > > NULL * parent NULL NULL NULL * child NULL v * * name "." "ls" * type S_IFDIR S_IFREG * next > NULL * parent ^ ^ (to "bin") * child NULL NULL * * Notes: * - first always points to first entry, at current level, which * must be "." when the tree has been built; during build it may * not be if "." hasn't yet been found by readdir(2). */ enum fi_flags { FI_SIZED = 1<<0, /* inode sized */ FI_ALLOCATED = 1<<1, /* fsinode->ino allocated */ FI_WRITTEN = 1<<2, /* inode written */ }; typedef struct { uint32_t ino; /* inode number used on target fs */ uint32_t nlink; /* number of links to this entry */ enum fi_flags flags; /* flags used by fs specific code */ struct stat st; /* stat entry */ void *fsuse; /* for storing FS dependent info */ } fsinode; typedef struct _fsnode { struct _fsnode *parent; /* parent (NULL if root) */ struct _fsnode *child; /* child (if type == S_IFDIR) */ struct _fsnode *next; /* next */ struct _fsnode *first; /* first node of current level (".") */ uint32_t type; /* type of entry */ fsinode *inode; /* actual inode data */ char *symlink; /* symlink target */ const char *root; /* root path */ char *path; /* directory name */ char *name; /* file name */ int flags; /* misc flags */ } fsnode; #define FSNODE_F_HASSPEC 0x01 /* fsnode has a spec entry */ /* * option_t - contains option name, description, pointer to location to store * result, and range checks for the result. Used to simplify fs specific * option setting */ typedef enum { OPT_STRARRAY, OPT_STRPTR, OPT_STRBUF, OPT_BOOL, OPT_INT8, OPT_INT16, OPT_INT32, OPT_INT64 } opttype_t; typedef struct { const char *name; /* option name */ void *value; /* where to stuff the value */ opttype_t type; /* type of entry */ long long minimum; /* minimum for value */ long long maximum; /* maximum for value */ } option_t; /* * fsinfo_t - contains various settings and parameters pertaining to * the image, including current settings, global options, and fs * specific options */ typedef struct makefs_fsinfo { /* current settings */ off_t size; /* total size */ off_t inodes; /* number of inodes */ uint32_t curinode; /* current inode */ /* image settings */ int fd; /* file descriptor of image */ void *superblock; /* superblock */ /* global options */ off_t minsize; /* minimum size image should be */ off_t maxsize; /* maximum size image can be */ off_t freefiles; /* free file entries to leave */ off_t freeblocks; /* free blocks to leave */ off_t offset; /* offset from start of file */ int freefilepc; /* free file % */ int freeblockpc; /* free block % */ int sectorsize; /* sector size */ void *fs_specific; /* File system specific additions. */ option_t *fs_options; /* File system specific options */ } fsinfo_t; const char * inode_type(mode_t); int set_option(const option_t *, const char *, char *, size_t); int set_option_var(const option_t *, const char *, const char *, char *, size_t); fsnode * walk_dir(const char *, const char *, fsnode *, fsnode *); void free_fsnodes(fsnode *); option_t * copy_opts(const option_t *); #define DECLARE_FUN(fs) \ void fs ## _prep_opts(fsinfo_t *); \ int fs ## _parse_opts(const char *, fsinfo_t *); \ void fs ## _cleanup_opts(fsinfo_t *); \ void fs ## _makefs(const char *, const char *, fsnode *, fsinfo_t *) DECLARE_FUN(ffs); DECLARE_FUN(cd9660); DECLARE_FUN(msdos); extern int Tflag; extern time_t stampts; extern struct timespec start_time; #ifndef DEFAULT_FSTYPE #define DEFAULT_FSTYPE "ffs" #endif #define MINIMUM(a, b) (((a) < (b)) ? (a) : (b)) #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b)) /* xmalloc.c */ void *emalloc(size_t); void *ecalloc(size_t, size_t); void *erealloc(void *, size_t); char *estrdup(const char *); #endif /* _MAKEFS_H */
