202 lines
6.9 KiB
C
202 lines
6.9 KiB
C
/* $NetBSD: makefs.h,v 1.3 2001/11/25 11:22:09 lukem Exp $ */
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/*
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* Copyright (c) 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Luke Mewburn for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/stat.h>
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/*
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* fsnode - a component of the tree which contains information about the
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* file system.
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*
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* A tree of these looks like this:
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*
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* name "." "bin" "netbsd"
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* type S_IFDIR S_IFDIR S_IFREG
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* next > > NULL
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* parent NULL NULL NULL
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* child NULL v
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*
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* name "." "ls"
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* type S_IFDIR S_IFREG
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* next > NULL
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* parent ^ ^ (to "bin")
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* child NULL NULL
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*
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* Notes:
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* - first always points to first entry, at current level, which
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* must be "." when the tree has been built; during build it may
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* not be if "." hasn't yet been found by readdir(2).
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*
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* - if dup is not NULL, it points to an fsnode that this is a
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* duplicate of; only relevant for non directories with > 1 link
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*/
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typedef struct _fsnode {
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struct _fsnode *parent; /* parent (NULL if root) */
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struct _fsnode *child; /* child (if type == S_IFDIR) */
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struct _fsnode *next; /* next */
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struct _fsnode *first; /* first node of current level (".") */
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struct stat statbuf; /* stat entry */
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char *symlink; /* symlink target */
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char *name; /* file name */
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struct _fsnode *dup; /* entry this is a duplicate of
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(when statbuf.st_nlink > 1) */
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uint32_t nlink; /* number of links to this entry */
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uint32_t type; /* type of entry */
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uint32_t ino; /* inode number used on target fs */
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} fsnode;
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/*
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* fsinfo_t - contains various settings and parameters pertaining to
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* the image, including current settings, global options, and fs
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* specific options
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*/
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typedef struct {
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/* current settings */
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off_t size; /* total size */
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off_t inodes; /* number of inodes */
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uint32_t curinode; /* current inode */
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/* image settings */
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int fd; /* file descriptor of image */
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void *superblock; /* superblock */
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/* global options */
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off_t minsize; /* minimum size image should be */
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off_t maxsize; /* maximum size image can be */
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off_t freefiles; /* free file entries to leave */
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int freefilepc; /* free file % */
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off_t freeblocks; /* free blocks to leave */
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int freeblockpc; /* free block % */
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int needswap; /* non-zero if byte swapping needed */
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int sectorsize; /* sector size */
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/* ffs specific options */
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int bsize; /* block size */
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int fsize; /* fragment size */
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int cpg; /* cylinders per group */
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int density; /* bytes per inode */
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int ntracks; /* number of tracks */
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int nsectors; /* number of sectors */
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int rpm; /* rpm */
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int minfree; /* free space threshold */
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int optimization; /* optimization (space or time) */
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int maxcontig; /* max contiguous blocks to allocate */
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int rotdelay; /* rotational delay between blocks */
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int maxbpg; /* maximum blocks per file in a cyl group */
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int nrpos; /* # of distinguished rotational positions */
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int avgfilesize; /* expected average file size */
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int avgfpdir; /* expected # of files per directory */
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/* XXX: support `old' file systems ? */
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} fsinfo_t;
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/*
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* option_t - contains option name, description, pointer to location to store
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* result, and range checks for the result. Used to simplify fs specific
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* option setting
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*/
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typedef struct {
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const char *name; /* option name */
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int *value; /* where to stuff the value */
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int minimum; /* minimum for value */
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int maximum; /* maximum for value */
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const char *desc; /* option description */
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} option_t;
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void apply_specfile(const char *, const char *, fsnode *);
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void dump_fsnodes(const char *, fsnode *);
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const char * inode_type(mode_t);
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int set_option(option_t *, const char *, const char *);
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fsnode * walk_dir(const char *, fsnode *);
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int ffs_parse_opts(const char *, fsinfo_t *);
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void ffs_makefs(const char *, const char *, fsnode *, fsinfo_t *);
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extern u_int debug;
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extern struct timespec start_time;
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#define DEBUG_TIME 0x00000001
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/* debug bits 1..3 unused at this time */
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#define DEBUG_WALK_DIR 0x00000010
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#define DEBUG_WALK_DIR_NODE 0x00000020
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#define DEBUG_WALK_DIR_LINKCHECK 0x00000040
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#define DEBUG_DUMP_FSNODES 0x00000080
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#define DEBUG_DUMP_FSNODES_VERBOSE 0x00000100
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#define DEBUG_FS_PARSE_OPTS 0x00000200
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#define DEBUG_FS_MAKEFS 0x00000400
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#define DEBUG_FS_VALIDATE 0x00000800
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#define DEBUG_FS_CREATE_IMAGE 0x00001000
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#define DEBUG_FS_SIZE_DIR 0x00002000
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#define DEBUG_FS_SIZE_DIR_NODE 0x00004000
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#define DEBUG_FS_SIZE_DIR_ADD_DIRENT 0x00008000
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#define DEBUG_FS_POPULATE 0x00010000
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#define DEBUG_FS_POPULATE_DIRBUF 0x00020000
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#define DEBUG_FS_POPULATE_NODE 0x00040000
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#define DEBUG_FS_WRITE_FILE 0x00080000
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#define DEBUG_FS_WRITE_FILE_BLOCK 0x00100000
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#define DEBUG_FS_MAKE_DIRBUF 0x00200000
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#define DEBUG_FS_WRITE_INODE 0x00400000
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#define DEBUG_BUF_BREAD 0x00800000
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#define DEBUG_BUF_BWRITE 0x01000000
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#define DEBUG_BUF_GETBLK 0x02000000
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#define DEBUG_APPLY_SPECFILE 0x04000000
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#define DEBUG_APPLY_SPECENTRY 0x08000000
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#define TIMER_START(x) \
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if (debug & DEBUG_TIME) \
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gettimeofday(&(x), NULL)
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#define TIMER_RESULTS(x,d) \
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if (debug & DEBUG_TIME) { \
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struct timeval end, td; \
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gettimeofday(&end, NULL); \
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timersub(&end, &(x), &td); \
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printf("%s took %ld.%06ld seconds\n", \
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(d), td.tv_sec, td.tv_usec); \
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}
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#ifndef DEFAULT_FSTYPE
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#define DEFAULT_FSTYPE "ffs"
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#endif
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