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/* $OpenBSD: makefs.h,v 1.12 2016/12/17 16:12:15 krw 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
/* xmalloc.c */
void *emalloc(size_t);
void *ecalloc(size_t, size_t);
void *erealloc(void *, size_t);
char *estrdup(const char *);
#endif /* _MAKEFS_H */
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