/* $NetBSD: makefs.h,v 1.20 2008/12/28 21:51:46 christos Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* 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.
*
* $FreeBSD$
*/
#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 */
} 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 */
char *contents; /* file to provide contents */
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 */
#define FSNODE_F_OPTIONAL 0x02 /* fsnode is optional */
/*
* 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 {
char letter; /* option letter NUL for none */
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 */
const char *desc; /* option description */
} 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 */
int onlyspec; /* only add entries in specfile */
/* 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 */
off_t roundup; /* round image size up to this value */
int freefilepc; /* free file % */
int freeblockpc; /* free block % */
int needswap; /* non-zero if byte swapping needed */
int sectorsize; /* sector size */
int sparse; /* sparse image, don't fill it with zeros */
void *fs_specific; /* File system specific additions. */
option_t *fs_options; /* File system specific options */
} fsinfo_t;
void apply_specfile(const char *, const char *, fsnode *, int);
void dump_fsnodes(fsnode *);
const char * inode_type(mode_t);
fsnode * read_mtree(const char *, fsnode *);
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);
extern u_int debug;
extern int dupsok;
extern struct timespec start_time;
extern struct stat stampst;
/*
* If -x is specified, we want to exclude nodes which do not appear
* in the spec file.
*/
#define FSNODE_EXCLUDE_P(opts, fsnode) \
((opts)->onlyspec != 0 && ((fsnode)->flags & FSNODE_F_HASSPEC) == 0)
#define DEBUG_TIME 0x00000001
/* debug bits 1..3 unused at this time */
#define DEBUG_WALK_DIR 0x00000010
#define DEBUG_WALK_DIR_NODE 0x00000020
#define DEBUG_WALK_DIR_LINKCHECK 0x00000040
#define DEBUG_DUMP_FSNODES 0x00000080
#define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100
#define DEBUG_FS_PARSE_OPTS 0x00000200
#define DEBUG_FS_MAKEFS 0x00000400
#define DEBUG_FS_VALIDATE 0x00000800
#define DEBUG_FS_CREATE_IMAGE 0x00001000
#define DEBUG_FS_SIZE_DIR 0x00002000
#define DEBUG_FS_SIZE_DIR_NODE 0x00004000
#define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000
#define DEBUG_FS_POPULATE 0x00010000
#define DEBUG_FS_POPULATE_DIRBUF 0x00020000
#define DEBUG_FS_POPULATE_NODE 0x00040000
#define DEBUG_FS_WRITE_FILE 0x00080000
#define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000
#define DEBUG_FS_MAKE_DIRBUF 0x00200000
#define DEBUG_FS_WRITE_INODE 0x00400000
#define DEBUG_BUF_BREAD 0x00800000
#define DEBUG_BUF_BWRITE 0x01000000
#define DEBUG_BUF_GETBLK 0x02000000
#define DEBUG_APPLY_SPECFILE 0x04000000
#define DEBUG_APPLY_SPECENTRY 0x08000000
#define DEBUG_APPLY_SPECONLY 0x10000000
#define TIMER_START(x) \
if (debug & DEBUG_TIME) \
gettimeofday(&(x), NULL)
#define TIMER_RESULTS(x,d) \
if (debug & DEBUG_TIME) { \
struct timeval end, td; \
gettimeofday(&end, NULL); \
timersub(&end, &(x), &td); \
printf("%s took %lld.%06ld seconds\n", \
(d), (long long)td.tv_sec, \
(long)td.tv_usec); \
}
#ifndef DEFAULT_FSTYPE
#define DEFAULT_FSTYPE "ffs"
#endif
/*
* ffs specific settings
* ---------------------
*/
#define FFS_EI /* for opposite endian support in ffs headers */
/*
* Write-arounds/compat shims for endian-agnostic support.
* These belong in the kernel if/when it's possible to mount
* filesystems w/ either byte order.
*/
/*
* File system internal flags, also in fs_flags.
* (Pick highest number to avoid conflicts with others)
*/
#define FS_SWAPPED 0x80000000 /* file system is endian swapped */
#define FS_INTERNAL 0x80000000 /* mask for internal flags */
#define FS_ISCLEAN 1
#define DINODE1_SIZE (sizeof(struct ufs1_dinode))
#define DINODE2_SIZE (sizeof(struct ufs2_dinode))
#define UFS1_MAXSYMLINKLEN ((UFS_NDADDR + UFS_NIADDR) * sizeof(ufs1_daddr_t))
#define UFS2_MAXSYMLINKLEN ((UFS_NDADDR + UFS_NIADDR) * sizeof(ufs2_daddr_t))
#if (BYTE_ORDER == LITTLE_ENDIAN)
#define DIRSIZ_SWAP(oldfmt, dp, needswap) \
(((oldfmt) && !(needswap)) ? \
DIRECTSIZ((dp)->d_type) : DIRECTSIZ((dp)->d_namlen))
#else
#define DIRSIZ_SWAP(oldfmt, dp, needswap) \
(((oldfmt) && (needswap)) ? \
DIRECTSIZ((dp)->d_type) : DIRECTSIZ((dp)->d_namlen))
#endif
#define cg_chkmagic_swap(cgp, ns) \
(ufs_rw32((cgp)->cg_magic, (ns)) == CG_MAGIC)
#define cg_inosused_swap(cgp, ns) \
((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_iusedoff, (ns))))
#define cg_blksfree_swap(cgp, ns) \
((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_freeoff, (ns))))
#define cg_clustersfree_swap(cgp, ns) \
((u_int8_t *)((u_int8_t *)(cgp) + ufs_rw32((cgp)->cg_clusteroff, (ns))))
#define cg_clustersum_swap(cgp, ns) \
((int32_t *)((uintptr_t)(cgp) + ufs_rw32((cgp)->cg_clustersumoff, ns)))
struct fs;
void ffs_fragacct_swap(struct fs *, int, int32_t [], int, int);
fsinode *link_check(fsinode *);
#endif /* _MAKEFS_H */