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NetBSD/usr.sbin/makefs/makefs.h

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/* $NetBSD: makefs.h,v 1.12 2003/10/27 00:12:44 lukem 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
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#else
#define HAVE_STRUCT_STAT_ST_FLAGS 1
#define HAVE_STRUCT_STAT_ST_GEN 1
#define HAVE_STRUCT_STAT_ST_MTIMENSEC 1
#define HAVE_STRUCT_STATFS_F_IOSIZE 1
#define HAVE_STRUCT_STAT_BIRTHTIME 1
#endif
#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 *name; /* file name */
int flags; /* misc flags */
} fsnode;
#define FSNODE_F_HASSPEC 0x01 /* fsnode has a spec entry */
/*
* fsinfo_t - contains various settings and parameters pertaining to
* the image, including current settings, global options, and fs
* specific options
*/
typedef struct {
/* 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 */
int freefilepc; /* free file % */
off_t freeblocks; /* free blocks to leave */
int freeblockpc; /* free block % */
int needswap; /* non-zero if byte swapping needed */
int sectorsize; /* sector size */
/* ffs specific options */
int bsize; /* block size */
int fsize; /* fragment size */
int cpg; /* cylinders per group */
int cpgflg; /* cpg was specified by user */
int density; /* bytes per inode */
int ntracks; /* number of tracks */
int nsectors; /* number of sectors */
int rpm; /* rpm */
int minfree; /* free space threshold */
int optimization; /* optimization (space or time) */
int maxcontig; /* max contiguous blocks to allocate */
int rotdelay; /* rotational delay between blocks */
int maxbpg; /* maximum blocks per file in a cyl group */
int nrpos; /* # of distinguished rotational positions */
int avgfilesize; /* expected average file size */
int avgfpdir; /* expected # of files per directory */
int version; /* filesystem version (1 = FFS, 2 = UFS2) */
int maxbsize; /* maximum extent size */
int maxblkspercg; /* max # of blocks per cylinder group */
/* XXX: support `old' file systems ? */
} fsinfo_t;
/*
* 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 struct {
const char *name; /* option name */
int *value; /* where to stuff the value */
int minimum; /* minimum for value */
int maximum; /* maximum for value */
const char *desc; /* option description */
} option_t;
void apply_specfile(const char *, const char *, fsnode *);
void dump_fsnodes(const char *, fsnode *);
const char * inode_type(mode_t);
int set_option(option_t *, const char *, const char *);
fsnode * walk_dir(const char *, fsnode *);
int ffs_parse_opts(const char *, fsinfo_t *);
void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *);
extern uint debug;
extern struct timespec start_time;
/*
* 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 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 %ld.%06ld seconds\n", \
(d), td.tv_sec, td.tv_usec); \
}
#ifndef DEFAULT_FSTYPE
#define DEFAULT_FSTYPE "ffs"
#endif
/*
* ffs specific settings
* ---------------------
*/
#define FFS_EI /* for opposite endian support in ffs headers */
#endif /* _MAKEFS_H */
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