When a new FS image is created we need to calculate how much space each file is going to consume. Fix two bugs in that logic: 1) Count the space needed for indirect blocks for large files. 1) Normally the trailing data of a file is written to a block of frag size, 4 kB by default. However for files that use indirect blocks a full block is allocated, 32kB by default. Take that into account. Adjust size calculations to match what is done in ffs_mkfs routine: * Depending on the UFS version the superblock is stored at a different offset. Take that into account. * Add the cylinder group block size. * All of the above has to be aligned to the block size. Finally, Remove "ncg" variable. It's always 1 and it was used to multiply stuff. PR: 229929 Reviewed by: mckusick MFC after: 2 weeks Sponsored by: Semihalf Submitted by: Kornel Dulęba <mindal@semihalf.com> Differential Revision: https://reviews.freebsd.org/D35131 Differential Revision: https://reviews.freebsd.org/D35132
1206 lines
35 KiB
C
1206 lines
35 KiB
C
/* $NetBSD: ffs.c,v 1.45 2011/10/09 22:49:26 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.
|
|
*/
|
|
/*
|
|
* Copyright (c) 1982, 1986, 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#if HAVE_NBTOOL_CONFIG_H
|
|
#include "nbtool_config.h"
|
|
#endif
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <sys/mount.h>
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <util.h>
|
|
|
|
#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
|
|
#include <sys/statvfs.h>
|
|
#endif
|
|
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ufs/dir.h>
|
|
#include <ufs/ffs/fs.h>
|
|
|
|
#include "ffs/ufs_bswap.h"
|
|
#include "ffs/ufs_inode.h"
|
|
#include "ffs/newfs_extern.h"
|
|
#include "ffs/ffs_extern.h"
|
|
|
|
#undef clrbuf
|
|
#include "makefs.h"
|
|
#include "ffs.h"
|
|
|
|
#undef DIP
|
|
#define DIP(dp, field) \
|
|
((ffs_opts->version == 1) ? \
|
|
(dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field)
|
|
|
|
/*
|
|
* Various file system defaults (cribbed from newfs(8)).
|
|
*/
|
|
#define DFL_FRAGSIZE 4096 /* fragment size */
|
|
#define DFL_BLKSIZE 32768 /* block size */
|
|
#define DFL_SECSIZE 512 /* sector size */
|
|
#define DFL_CYLSPERGROUP 65536 /* cylinders per group */
|
|
#define DFL_FRAGSPERINODE 4 /* fragments per inode */
|
|
#define DFL_ROTDELAY 0 /* rotational delay */
|
|
#define DFL_NRPOS 1 /* rotational positions */
|
|
#define DFL_RPM 3600 /* rpm of disk */
|
|
#define DFL_NSECTORS 64 /* # of sectors */
|
|
#define DFL_NTRACKS 16 /* # of tracks */
|
|
|
|
|
|
typedef struct {
|
|
u_char *buf; /* buf for directory */
|
|
doff_t size; /* full size of buf */
|
|
doff_t cur; /* offset of current entry */
|
|
} dirbuf_t;
|
|
|
|
|
|
static int ffs_create_image(const char *, fsinfo_t *);
|
|
static void ffs_dump_fsinfo(fsinfo_t *);
|
|
static void ffs_dump_dirbuf(dirbuf_t *, const char *, int);
|
|
static void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int);
|
|
static int ffs_populate_dir(const char *, fsnode *, fsinfo_t *);
|
|
static void ffs_size_dir(fsnode *, fsinfo_t *);
|
|
static void ffs_validate(const char *, fsnode *, fsinfo_t *);
|
|
static void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *);
|
|
static void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *);
|
|
static void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *,
|
|
fsnode *, fsinfo_t *);
|
|
static void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *,
|
|
fsnode *, fsinfo_t *);
|
|
|
|
|
|
/* publicly visible functions */
|
|
|
|
void
|
|
ffs_prep_opts(fsinfo_t *fsopts)
|
|
{
|
|
ffs_opt_t *ffs_opts = ecalloc(1, sizeof(*ffs_opts));
|
|
|
|
const option_t ffs_options[] = {
|
|
{ 'b', "bsize", &ffs_opts->bsize, OPT_INT32,
|
|
1, INT_MAX, "block size" },
|
|
{ 'f', "fsize", &ffs_opts->fsize, OPT_INT32,
|
|
1, INT_MAX, "fragment size" },
|
|
{ 'd', "density", &ffs_opts->density, OPT_INT32,
|
|
1, INT_MAX, "bytes per inode" },
|
|
{ 'm', "minfree", &ffs_opts->minfree, OPT_INT32,
|
|
0, 99, "minfree" },
|
|
{ 'M', "maxbpg", &ffs_opts->maxbpg, OPT_INT32,
|
|
1, INT_MAX, "max blocks per file in a cg" },
|
|
{ 'a', "avgfilesize", &ffs_opts->avgfilesize, OPT_INT32,
|
|
1, INT_MAX, "expected average file size" },
|
|
{ 'n', "avgfpdir", &ffs_opts->avgfpdir, OPT_INT32,
|
|
1, INT_MAX, "expected # of files per directory" },
|
|
{ 'x', "extent", &ffs_opts->maxbsize, OPT_INT32,
|
|
1, INT_MAX, "maximum # extent size" },
|
|
{ 'g', "maxbpcg", &ffs_opts->maxblkspercg, OPT_INT32,
|
|
1, INT_MAX, "max # of blocks per group" },
|
|
{ 'v', "version", &ffs_opts->version, OPT_INT32,
|
|
1, 2, "UFS version" },
|
|
{ 'o', "optimization", NULL, OPT_STRBUF,
|
|
0, 0, "Optimization (time|space)" },
|
|
{ 'l', "label", ffs_opts->label, OPT_STRARRAY,
|
|
1, sizeof(ffs_opts->label), "UFS label" },
|
|
{ 's', "softupdates", &ffs_opts->softupdates, OPT_INT32,
|
|
0, 1, "enable softupdates" },
|
|
{ .name = NULL }
|
|
};
|
|
|
|
ffs_opts->bsize= -1;
|
|
ffs_opts->fsize= -1;
|
|
ffs_opts->cpg= -1;
|
|
ffs_opts->density= -1;
|
|
ffs_opts->min_inodes= false;
|
|
ffs_opts->minfree= -1;
|
|
ffs_opts->optimization= -1;
|
|
ffs_opts->maxcontig= -1;
|
|
ffs_opts->maxbpg= -1;
|
|
ffs_opts->avgfilesize= -1;
|
|
ffs_opts->avgfpdir= -1;
|
|
ffs_opts->version = 1;
|
|
ffs_opts->softupdates = 0;
|
|
|
|
fsopts->fs_specific = ffs_opts;
|
|
fsopts->fs_options = copy_opts(ffs_options);
|
|
}
|
|
|
|
void
|
|
ffs_cleanup_opts(fsinfo_t *fsopts)
|
|
{
|
|
free(fsopts->fs_specific);
|
|
free(fsopts->fs_options);
|
|
}
|
|
|
|
int
|
|
ffs_parse_opts(const char *option, fsinfo_t *fsopts)
|
|
{
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
option_t *ffs_options = fsopts->fs_options;
|
|
char buf[1024];
|
|
|
|
int rv;
|
|
|
|
assert(option != NULL);
|
|
assert(fsopts != NULL);
|
|
assert(ffs_opts != NULL);
|
|
|
|
if (debug & DEBUG_FS_PARSE_OPTS)
|
|
printf("ffs_parse_opts: got `%s'\n", option);
|
|
|
|
rv = set_option(ffs_options, option, buf, sizeof(buf));
|
|
if (rv == -1)
|
|
return 0;
|
|
|
|
if (ffs_options[rv].name == NULL)
|
|
abort();
|
|
|
|
switch (ffs_options[rv].letter) {
|
|
case 'o':
|
|
if (strcmp(buf, "time") == 0) {
|
|
ffs_opts->optimization = FS_OPTTIME;
|
|
} else if (strcmp(buf, "space") == 0) {
|
|
ffs_opts->optimization = FS_OPTSPACE;
|
|
} else {
|
|
warnx("Invalid optimization `%s'", buf);
|
|
return 0;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
void
|
|
ffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
struct fs *superblock;
|
|
struct timeval start;
|
|
|
|
assert(image != NULL);
|
|
assert(dir != NULL);
|
|
assert(root != NULL);
|
|
assert(fsopts != NULL);
|
|
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
printf("ffs_makefs: image %s directory %s root %p\n",
|
|
image, dir, root);
|
|
|
|
/* if user wants no free space, use minimum number of inodes */
|
|
if (fsopts->minsize == 0 && fsopts->freeblockpc == 0 &&
|
|
fsopts->freeblocks == 0)
|
|
((ffs_opt_t *)fsopts->fs_specific)->min_inodes = true;
|
|
|
|
/* validate tree and options */
|
|
TIMER_START(start);
|
|
ffs_validate(dir, root, fsopts);
|
|
TIMER_RESULTS(start, "ffs_validate");
|
|
|
|
printf("Calculated size of `%s': %lld bytes, %lld inodes\n",
|
|
image, (long long)fsopts->size, (long long)fsopts->inodes);
|
|
|
|
/* create image */
|
|
TIMER_START(start);
|
|
if (ffs_create_image(image, fsopts) == -1)
|
|
errx(1, "Image file `%s' not created.", image);
|
|
TIMER_RESULTS(start, "ffs_create_image");
|
|
|
|
fsopts->curinode = UFS_ROOTINO;
|
|
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
putchar('\n');
|
|
|
|
/* populate image */
|
|
printf("Populating `%s'\n", image);
|
|
TIMER_START(start);
|
|
if (! ffs_populate_dir(dir, root, fsopts))
|
|
errx(1, "Image file `%s' not populated.", image);
|
|
TIMER_RESULTS(start, "ffs_populate_dir");
|
|
|
|
/* ensure no outstanding buffers remain */
|
|
if (debug & DEBUG_FS_MAKEFS)
|
|
bcleanup();
|
|
|
|
/* update various superblock parameters */
|
|
superblock = fsopts->superblock;
|
|
superblock->fs_fmod = 0;
|
|
superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir;
|
|
superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree;
|
|
superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree;
|
|
superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree;
|
|
|
|
/* write out superblock; image is now complete */
|
|
ffs_write_superblock(fsopts->superblock, fsopts);
|
|
if (close(fsopts->fd) == -1)
|
|
err(1, "Closing `%s'", image);
|
|
fsopts->fd = -1;
|
|
printf("Image `%s' complete\n", image);
|
|
}
|
|
|
|
/* end of public functions */
|
|
|
|
|
|
static void
|
|
ffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
#ifdef notyet
|
|
int32_t spc, nspf, ncyl, fssize;
|
|
#endif
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
|
|
assert(dir != NULL);
|
|
assert(root != NULL);
|
|
assert(fsopts != NULL);
|
|
assert(ffs_opts != NULL);
|
|
|
|
if (debug & DEBUG_FS_VALIDATE) {
|
|
printf("ffs_validate: before defaults set:\n");
|
|
ffs_dump_fsinfo(fsopts);
|
|
}
|
|
|
|
/* set FFS defaults */
|
|
if (fsopts->sectorsize == -1)
|
|
fsopts->sectorsize = DFL_SECSIZE;
|
|
if (ffs_opts->fsize == -1)
|
|
ffs_opts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize);
|
|
if (ffs_opts->bsize == -1)
|
|
ffs_opts->bsize = MIN(DFL_BLKSIZE, 8 * ffs_opts->fsize);
|
|
if (ffs_opts->cpg == -1)
|
|
ffs_opts->cpg = DFL_CYLSPERGROUP;
|
|
else
|
|
ffs_opts->cpgflg = 1;
|
|
/* fsopts->density is set below */
|
|
if (ffs_opts->nsectors == -1)
|
|
ffs_opts->nsectors = DFL_NSECTORS;
|
|
if (ffs_opts->minfree == -1)
|
|
ffs_opts->minfree = MINFREE;
|
|
if (ffs_opts->optimization == -1)
|
|
ffs_opts->optimization = DEFAULTOPT;
|
|
if (ffs_opts->maxcontig == -1)
|
|
ffs_opts->maxcontig =
|
|
MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / ffs_opts->bsize);
|
|
/* XXX ondisk32 */
|
|
if (ffs_opts->maxbpg == -1)
|
|
ffs_opts->maxbpg = ffs_opts->bsize / sizeof(int32_t);
|
|
if (ffs_opts->avgfilesize == -1)
|
|
ffs_opts->avgfilesize = AVFILESIZ;
|
|
if (ffs_opts->avgfpdir == -1)
|
|
ffs_opts->avgfpdir = AFPDIR;
|
|
|
|
if (fsopts->maxsize > 0 &&
|
|
roundup(fsopts->minsize, ffs_opts->bsize) > fsopts->maxsize)
|
|
errx(1, "`%s' minsize of %lld rounded up to ffs bsize of %d "
|
|
"exceeds maxsize %lld. Lower bsize, or round the minimum "
|
|
"and maximum sizes to bsize.", dir,
|
|
(long long)fsopts->minsize, ffs_opts->bsize,
|
|
(long long)fsopts->maxsize);
|
|
|
|
/* calculate size of tree */
|
|
ffs_size_dir(root, fsopts);
|
|
fsopts->inodes += UFS_ROOTINO; /* include first two inodes */
|
|
|
|
if (debug & DEBUG_FS_VALIDATE)
|
|
printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n",
|
|
(long long)fsopts->size, (long long)fsopts->inodes);
|
|
|
|
/* add requested slop */
|
|
fsopts->size += fsopts->freeblocks;
|
|
fsopts->inodes += fsopts->freefiles;
|
|
if (fsopts->freefilepc > 0)
|
|
fsopts->inodes =
|
|
fsopts->inodes * (100 + fsopts->freefilepc) / 100;
|
|
if (fsopts->freeblockpc > 0)
|
|
fsopts->size =
|
|
fsopts->size * (100 + fsopts->freeblockpc) / 100;
|
|
|
|
/*
|
|
* Add space needed for superblock, cylblock and to store inodes.
|
|
* All of those segments are aligned to the block size.
|
|
* XXX: This has to match calculations done in ffs_mkfs.
|
|
*/
|
|
if (ffs_opts->version == 1) {
|
|
fsopts->size +=
|
|
roundup(SBLOCK_UFS1 + SBLOCKSIZE, ffs_opts->bsize);
|
|
fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize);
|
|
fsopts->size += ffs_opts->bsize;
|
|
fsopts->size += DINODE1_SIZE *
|
|
roundup(fsopts->inodes, ffs_opts->bsize / DINODE1_SIZE);
|
|
} else {
|
|
fsopts->size +=
|
|
roundup(SBLOCK_UFS2 + SBLOCKSIZE, ffs_opts->bsize);
|
|
fsopts->size += roundup(SBLOCKSIZE, ffs_opts->bsize);
|
|
fsopts->size += ffs_opts->bsize;
|
|
fsopts->size += DINODE2_SIZE *
|
|
roundup(fsopts->inodes, ffs_opts->bsize / DINODE2_SIZE);
|
|
}
|
|
|
|
/* add minfree */
|
|
if (ffs_opts->minfree > 0)
|
|
fsopts->size =
|
|
fsopts->size * (100 + ffs_opts->minfree) / 100;
|
|
/*
|
|
* XXX any other fs slop to add, such as csum's, bitmaps, etc ??
|
|
*/
|
|
|
|
if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */
|
|
fsopts->size = fsopts->minsize;
|
|
|
|
/* round up to the next block */
|
|
fsopts->size = roundup(fsopts->size, ffs_opts->bsize);
|
|
|
|
/* round up to requested block size, if any */
|
|
if (fsopts->roundup > 0)
|
|
fsopts->size = roundup(fsopts->size, fsopts->roundup);
|
|
|
|
/* calculate density to just fit inodes if no free space */
|
|
if (ffs_opts->density == -1)
|
|
ffs_opts->density = fsopts->size / fsopts->inodes + 1;
|
|
|
|
if (debug & DEBUG_FS_VALIDATE) {
|
|
printf("ffs_validate: after defaults set:\n");
|
|
ffs_dump_fsinfo(fsopts);
|
|
printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n",
|
|
dir, (long long)fsopts->size, (long long)fsopts->inodes);
|
|
}
|
|
/* now check calculated sizes vs requested sizes */
|
|
if (fsopts->maxsize > 0 && fsopts->size > fsopts->maxsize) {
|
|
errx(1, "`%s' size of %lld is larger than the maxsize of %lld.",
|
|
dir, (long long)fsopts->size, (long long)fsopts->maxsize);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
ffs_dump_fsinfo(fsinfo_t *f)
|
|
{
|
|
|
|
ffs_opt_t *fs = f->fs_specific;
|
|
|
|
printf("fsopts at %p\n", f);
|
|
|
|
printf("\tsize %lld, inodes %lld, curinode %u\n",
|
|
(long long)f->size, (long long)f->inodes, f->curinode);
|
|
|
|
printf("\tminsize %lld, maxsize %lld\n",
|
|
(long long)f->minsize, (long long)f->maxsize);
|
|
printf("\tfree files %lld, freefile %% %d\n",
|
|
(long long)f->freefiles, f->freefilepc);
|
|
printf("\tfree blocks %lld, freeblock %% %d\n",
|
|
(long long)f->freeblocks, f->freeblockpc);
|
|
printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize);
|
|
|
|
printf("\tbsize %d, fsize %d, cpg %d, density %d\n",
|
|
fs->bsize, fs->fsize, fs->cpg, fs->density);
|
|
printf("\tnsectors %d, rpm %d, minfree %d\n",
|
|
fs->nsectors, fs->rpm, fs->minfree);
|
|
printf("\tmaxcontig %d, maxbpg %d\n",
|
|
fs->maxcontig, fs->maxbpg);
|
|
printf("\toptimization %s\n",
|
|
fs->optimization == FS_OPTSPACE ? "space" : "time");
|
|
}
|
|
|
|
|
|
static int
|
|
ffs_create_image(const char *image, fsinfo_t *fsopts)
|
|
{
|
|
#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
|
|
struct statvfs sfs;
|
|
#endif
|
|
struct fs *fs;
|
|
char *buf;
|
|
int i, bufsize;
|
|
off_t bufrem;
|
|
int oflags = O_RDWR | O_CREAT;
|
|
time_t tstamp;
|
|
|
|
assert (image != NULL);
|
|
assert (fsopts != NULL);
|
|
|
|
/* create image */
|
|
if (fsopts->offset == 0)
|
|
oflags |= O_TRUNC;
|
|
if ((fsopts->fd = open(image, oflags, 0666)) == -1) {
|
|
warn("Can't open `%s' for writing", image);
|
|
return (-1);
|
|
}
|
|
|
|
/* zero image */
|
|
#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
|
|
if (fstatvfs(fsopts->fd, &sfs) == -1) {
|
|
#endif
|
|
bufsize = 8192;
|
|
#if HAVE_STRUCT_STATVFS_F_IOSIZE && HAVE_FSTATVFS
|
|
warn("can't fstatvfs `%s', using default %d byte chunk",
|
|
image, bufsize);
|
|
} else
|
|
bufsize = sfs.f_iosize;
|
|
#endif
|
|
bufrem = fsopts->size;
|
|
if (fsopts->sparse) {
|
|
if (ftruncate(fsopts->fd, bufrem) == -1) {
|
|
warn("sparse option disabled.");
|
|
fsopts->sparse = 0;
|
|
}
|
|
}
|
|
if (fsopts->sparse) {
|
|
/* File truncated at bufrem. Remaining is 0 */
|
|
bufrem = 0;
|
|
buf = NULL;
|
|
} else {
|
|
if (debug & DEBUG_FS_CREATE_IMAGE)
|
|
printf("zero-ing image `%s', %lld sectors, "
|
|
"using %d byte chunks\n", image, (long long)bufrem,
|
|
bufsize);
|
|
buf = ecalloc(1, bufsize);
|
|
}
|
|
|
|
if (fsopts->offset != 0)
|
|
if (lseek(fsopts->fd, fsopts->offset, SEEK_SET) == -1) {
|
|
warn("can't seek");
|
|
free(buf);
|
|
return -1;
|
|
}
|
|
|
|
while (bufrem > 0) {
|
|
i = write(fsopts->fd, buf, MIN(bufsize, bufrem));
|
|
if (i == -1) {
|
|
warn("zeroing image, %lld bytes to go",
|
|
(long long)bufrem);
|
|
free(buf);
|
|
return (-1);
|
|
}
|
|
bufrem -= i;
|
|
}
|
|
if (buf)
|
|
free(buf);
|
|
|
|
/* make the file system */
|
|
if (debug & DEBUG_FS_CREATE_IMAGE)
|
|
printf("calling mkfs(\"%s\", ...)\n", image);
|
|
|
|
if (stampst.st_ino != 0)
|
|
tstamp = stampst.st_ctime;
|
|
else
|
|
tstamp = start_time.tv_sec;
|
|
|
|
srandom(tstamp);
|
|
|
|
fs = ffs_mkfs(image, fsopts, tstamp);
|
|
fsopts->superblock = (void *)fs;
|
|
if (debug & DEBUG_FS_CREATE_IMAGE) {
|
|
time_t t;
|
|
|
|
t = (time_t)((struct fs *)fsopts->superblock)->fs_time;
|
|
printf("mkfs returned %p; fs_time %s",
|
|
fsopts->superblock, ctime(&t));
|
|
printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n",
|
|
(long long)fs->fs_cstotal.cs_nbfree,
|
|
(long long)fs->fs_cstotal.cs_nffree,
|
|
(long long)fs->fs_cstotal.cs_nifree,
|
|
(long long)fs->fs_cstotal.cs_ndir);
|
|
}
|
|
|
|
if (fs->fs_cstotal.cs_nifree + (off_t)UFS_ROOTINO < fsopts->inodes) {
|
|
warnx(
|
|
"Image file `%s' has %lld free inodes; %lld are required.",
|
|
image,
|
|
(long long)(fs->fs_cstotal.cs_nifree + UFS_ROOTINO),
|
|
(long long)fsopts->inodes);
|
|
return (-1);
|
|
}
|
|
return (fsopts->fd);
|
|
}
|
|
|
|
|
|
static void
|
|
ffs_size_dir(fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
struct direct tmpdir;
|
|
fsnode * node;
|
|
int curdirsize, this;
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
|
|
/* node may be NULL (empty directory) */
|
|
assert(fsopts != NULL);
|
|
assert(ffs_opts != NULL);
|
|
|
|
if (debug & DEBUG_FS_SIZE_DIR)
|
|
printf("ffs_size_dir: entry: bytes %lld inodes %lld\n",
|
|
(long long)fsopts->size, (long long)fsopts->inodes);
|
|
|
|
#define ADDDIRENT(e) do { \
|
|
tmpdir.d_namlen = strlen((e)); \
|
|
this = DIRSIZ_SWAP(0, &tmpdir, 0); \
|
|
if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
|
|
printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \
|
|
e, tmpdir.d_namlen, this, curdirsize); \
|
|
if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \
|
|
curdirsize = roundup(curdirsize, DIRBLKSIZ); \
|
|
curdirsize += this; \
|
|
if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \
|
|
printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \
|
|
e, tmpdir.d_namlen, this, curdirsize); \
|
|
} while (0);
|
|
|
|
#define ADDSIZE(x) do { \
|
|
if ((size_t)(x) < UFS_NDADDR * (size_t)ffs_opts->bsize) { \
|
|
fsopts->size += roundup((x), ffs_opts->fsize); \
|
|
} else { \
|
|
/* Count space consumed by indirecttion blocks. */ \
|
|
fsopts->size += ffs_opts->bsize * \
|
|
(howmany((x), UFS_NDADDR * ffs_opts->bsize) - 1); \
|
|
/* \
|
|
* If the file is big enough to use indirect blocks, \
|
|
* we allocate bsize block for trailing data. \
|
|
*/ \
|
|
fsopts->size += roundup((x), ffs_opts->bsize); \
|
|
} \
|
|
} while (0);
|
|
|
|
curdirsize = 0;
|
|
for (node = root; node != NULL; node = node->next) {
|
|
ADDDIRENT(node->name);
|
|
if (node == root) { /* we're at "." */
|
|
assert(strcmp(node->name, ".") == 0);
|
|
ADDDIRENT("..");
|
|
} else if ((node->inode->flags & FI_SIZED) == 0) {
|
|
/* don't count duplicate names */
|
|
node->inode->flags |= FI_SIZED;
|
|
if (debug & DEBUG_FS_SIZE_DIR_NODE)
|
|
printf("ffs_size_dir: `%s' size %lld\n",
|
|
node->name,
|
|
(long long)node->inode->st.st_size);
|
|
fsopts->inodes++;
|
|
if (node->type == S_IFREG)
|
|
ADDSIZE(node->inode->st.st_size);
|
|
if (node->type == S_IFLNK) {
|
|
size_t slen;
|
|
|
|
slen = strlen(node->symlink) + 1;
|
|
if (slen >= (ffs_opts->version == 1 ?
|
|
UFS1_MAXSYMLINKLEN :
|
|
UFS2_MAXSYMLINKLEN))
|
|
ADDSIZE(slen);
|
|
}
|
|
}
|
|
if (node->type == S_IFDIR)
|
|
ffs_size_dir(node->child, fsopts);
|
|
}
|
|
ADDSIZE(curdirsize);
|
|
|
|
if (debug & DEBUG_FS_SIZE_DIR)
|
|
printf("ffs_size_dir: exit: size %lld inodes %lld\n",
|
|
(long long)fsopts->size, (long long)fsopts->inodes);
|
|
}
|
|
|
|
static void *
|
|
ffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
|
|
fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
size_t slen;
|
|
void *membuf;
|
|
struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
|
|
|
|
memset(dinp, 0, sizeof(*dinp));
|
|
dinp->di_mode = cur->inode->st.st_mode;
|
|
dinp->di_nlink = cur->inode->nlink;
|
|
dinp->di_size = cur->inode->st.st_size;
|
|
#if HAVE_STRUCT_STAT_ST_FLAGS
|
|
dinp->di_flags = cur->inode->st.st_flags;
|
|
#endif
|
|
dinp->di_gen = random();
|
|
dinp->di_uid = cur->inode->st.st_uid;
|
|
dinp->di_gid = cur->inode->st.st_gid;
|
|
|
|
dinp->di_atime = st->st_atime;
|
|
dinp->di_mtime = st->st_mtime;
|
|
dinp->di_ctime = st->st_ctime;
|
|
#if HAVE_STRUCT_STAT_ST_MTIMENSEC
|
|
dinp->di_atimensec = st->st_atimensec;
|
|
dinp->di_mtimensec = st->st_mtimensec;
|
|
dinp->di_ctimensec = st->st_ctimensec;
|
|
#endif
|
|
/* not set: di_db, di_ib, di_blocks, di_spare */
|
|
|
|
membuf = NULL;
|
|
if (cur == root) { /* "."; write dirbuf */
|
|
membuf = dbufp->buf;
|
|
dinp->di_size = dbufp->size;
|
|
} else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
|
|
dinp->di_size = 0; /* a device */
|
|
dinp->di_rdev =
|
|
ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap);
|
|
} else if (S_ISLNK(cur->type)) { /* symlink */
|
|
slen = strlen(cur->symlink);
|
|
if (slen < UFS1_MAXSYMLINKLEN) { /* short link */
|
|
memcpy(dinp->di_shortlink, cur->symlink, slen);
|
|
} else
|
|
membuf = cur->symlink;
|
|
dinp->di_size = slen;
|
|
}
|
|
return membuf;
|
|
}
|
|
|
|
static void *
|
|
ffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur,
|
|
fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
size_t slen;
|
|
void *membuf;
|
|
struct stat *st = stampst.st_ino != 0 ? &stampst : &cur->inode->st;
|
|
|
|
memset(dinp, 0, sizeof(*dinp));
|
|
dinp->di_mode = cur->inode->st.st_mode;
|
|
dinp->di_nlink = cur->inode->nlink;
|
|
dinp->di_size = cur->inode->st.st_size;
|
|
#if HAVE_STRUCT_STAT_ST_FLAGS
|
|
dinp->di_flags = cur->inode->st.st_flags;
|
|
#endif
|
|
dinp->di_gen = random();
|
|
dinp->di_uid = cur->inode->st.st_uid;
|
|
dinp->di_gid = cur->inode->st.st_gid;
|
|
|
|
dinp->di_atime = st->st_atime;
|
|
dinp->di_mtime = st->st_mtime;
|
|
dinp->di_ctime = st->st_ctime;
|
|
#if HAVE_STRUCT_STAT_BIRTHTIME
|
|
dinp->di_birthtime = st->st_birthtime;
|
|
#else
|
|
dinp->di_birthtime = st->st_ctime;
|
|
#endif
|
|
#if HAVE_STRUCT_STAT_ST_MTIMENSEC
|
|
dinp->di_atimensec = st->st_atimensec;
|
|
dinp->di_mtimensec = st->st_mtimensec;
|
|
dinp->di_ctimensec = st->st_ctimensec;
|
|
#if HAVE_STRUCT_STAT_BIRTHTIME
|
|
dinp->di_birthnsec = st->st_birthtimensec;
|
|
#else
|
|
dinp->di_birthnsec = st->st_ctimensec;
|
|
#endif
|
|
#endif
|
|
|
|
/* not set: di_db, di_ib, di_blocks, di_spare */
|
|
|
|
membuf = NULL;
|
|
if (cur == root) { /* "."; write dirbuf */
|
|
membuf = dbufp->buf;
|
|
dinp->di_size = dbufp->size;
|
|
} else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) {
|
|
dinp->di_size = 0; /* a device */
|
|
dinp->di_rdev =
|
|
ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap);
|
|
} else if (S_ISLNK(cur->type)) { /* symlink */
|
|
slen = strlen(cur->symlink);
|
|
if (slen < UFS2_MAXSYMLINKLEN) { /* short link */
|
|
memcpy(dinp->di_shortlink, cur->symlink, slen);
|
|
} else
|
|
membuf = cur->symlink;
|
|
dinp->di_size = slen;
|
|
}
|
|
return membuf;
|
|
}
|
|
|
|
static int
|
|
ffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts)
|
|
{
|
|
fsnode *cur;
|
|
dirbuf_t dirbuf;
|
|
union dinode din;
|
|
void *membuf;
|
|
char path[MAXPATHLEN + 1];
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
|
|
assert(dir != NULL);
|
|
assert(root != NULL);
|
|
assert(fsopts != NULL);
|
|
assert(ffs_opts != NULL);
|
|
|
|
(void)memset(&dirbuf, 0, sizeof(dirbuf));
|
|
|
|
if (debug & DEBUG_FS_POPULATE)
|
|
printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root);
|
|
|
|
/*
|
|
* pass 1: allocate inode numbers, build directory `file'
|
|
*/
|
|
for (cur = root; cur != NULL; cur = cur->next) {
|
|
if ((cur->inode->flags & FI_ALLOCATED) == 0) {
|
|
cur->inode->flags |= FI_ALLOCATED;
|
|
if (cur == root && cur->parent != NULL)
|
|
cur->inode->ino = cur->parent->inode->ino;
|
|
else {
|
|
cur->inode->ino = fsopts->curinode;
|
|
fsopts->curinode++;
|
|
}
|
|
}
|
|
ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap);
|
|
if (cur == root) { /* we're at "."; add ".." */
|
|
ffs_make_dirbuf(&dirbuf, "..",
|
|
cur->parent == NULL ? cur : cur->parent->first,
|
|
fsopts->needswap);
|
|
root->inode->nlink++; /* count my parent's link */
|
|
} else if (cur->child != NULL)
|
|
root->inode->nlink++; /* count my child's link */
|
|
|
|
/*
|
|
* XXX possibly write file and long symlinks here,
|
|
* ensuring that blocks get written before inodes?
|
|
* otoh, this isn't a real filesystem, so who
|
|
* cares about ordering? :-)
|
|
*/
|
|
}
|
|
if (debug & DEBUG_FS_POPULATE_DIRBUF)
|
|
ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap);
|
|
|
|
/*
|
|
* pass 2: write out dirbuf, then non-directories at this level
|
|
*/
|
|
if (debug & DEBUG_FS_POPULATE)
|
|
printf("ffs_populate_dir: PASS 2 dir %s\n", dir);
|
|
for (cur = root; cur != NULL; cur = cur->next) {
|
|
if (cur->inode->flags & FI_WRITTEN)
|
|
continue; /* skip hard-linked entries */
|
|
cur->inode->flags |= FI_WRITTEN;
|
|
|
|
if (cur->contents == NULL) {
|
|
if (snprintf(path, sizeof(path), "%s/%s/%s", cur->root,
|
|
cur->path, cur->name) >= (int)sizeof(path))
|
|
errx(1, "Pathname too long.");
|
|
}
|
|
|
|
if (cur->child != NULL)
|
|
continue; /* child creates own inode */
|
|
|
|
/* build on-disk inode */
|
|
if (ffs_opts->version == 1)
|
|
membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur,
|
|
root, fsopts);
|
|
else
|
|
membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur,
|
|
root, fsopts);
|
|
|
|
if (debug & DEBUG_FS_POPULATE_NODE) {
|
|
printf("ffs_populate_dir: writing ino %d, %s",
|
|
cur->inode->ino, inode_type(cur->type));
|
|
if (cur->inode->nlink > 1)
|
|
printf(", nlink %d", cur->inode->nlink);
|
|
putchar('\n');
|
|
}
|
|
|
|
if (membuf != NULL) {
|
|
ffs_write_file(&din, cur->inode->ino, membuf, fsopts);
|
|
} else if (S_ISREG(cur->type)) {
|
|
ffs_write_file(&din, cur->inode->ino,
|
|
(cur->contents) ? cur->contents : path, fsopts);
|
|
} else {
|
|
assert (! S_ISDIR(cur->type));
|
|
ffs_write_inode(&din, cur->inode->ino, fsopts);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* pass 3: write out sub-directories
|
|
*/
|
|
if (debug & DEBUG_FS_POPULATE)
|
|
printf("ffs_populate_dir: PASS 3 dir %s\n", dir);
|
|
for (cur = root; cur != NULL; cur = cur->next) {
|
|
if (cur->child == NULL)
|
|
continue;
|
|
if ((size_t)snprintf(path, sizeof(path), "%s/%s", dir,
|
|
cur->name) >= sizeof(path))
|
|
errx(1, "Pathname too long.");
|
|
if (! ffs_populate_dir(path, cur->child, fsopts))
|
|
return (0);
|
|
}
|
|
|
|
if (debug & DEBUG_FS_POPULATE)
|
|
printf("ffs_populate_dir: DONE dir %s\n", dir);
|
|
|
|
/* cleanup */
|
|
if (dirbuf.buf != NULL)
|
|
free(dirbuf.buf);
|
|
return (1);
|
|
}
|
|
|
|
|
|
static void
|
|
ffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts)
|
|
{
|
|
int isfile, ffd;
|
|
char *fbuf, *p;
|
|
off_t bufleft, chunk, offset;
|
|
ssize_t nread;
|
|
struct inode in;
|
|
struct m_buf * bp;
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
struct m_vnode vp = { fsopts, NULL };
|
|
|
|
assert (din != NULL);
|
|
assert (buf != NULL);
|
|
assert (fsopts != NULL);
|
|
assert (ffs_opts != NULL);
|
|
|
|
isfile = S_ISREG(DIP(din, mode));
|
|
fbuf = NULL;
|
|
ffd = -1;
|
|
p = NULL;
|
|
|
|
in.i_fs = (struct fs *)fsopts->superblock;
|
|
in.i_devvp = (void *)&vp;
|
|
|
|
if (debug & DEBUG_FS_WRITE_FILE) {
|
|
printf(
|
|
"ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld",
|
|
ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT),
|
|
(long long)DIP(din, size));
|
|
if (isfile)
|
|
printf(", file '%s'\n", (char *)buf);
|
|
else
|
|
printf(", buffer %p\n", buf);
|
|
}
|
|
|
|
in.i_number = ino;
|
|
in.i_size = DIP(din, size);
|
|
if (ffs_opts->version == 1)
|
|
memcpy(&in.i_din.ffs1_din, &din->ffs1_din,
|
|
sizeof(in.i_din.ffs1_din));
|
|
else
|
|
memcpy(&in.i_din.ffs2_din, &din->ffs2_din,
|
|
sizeof(in.i_din.ffs2_din));
|
|
|
|
if (DIP(din, size) == 0)
|
|
goto write_inode_and_leave; /* mmm, cheating */
|
|
|
|
if (isfile) {
|
|
fbuf = emalloc(ffs_opts->bsize);
|
|
if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) {
|
|
err(EXIT_FAILURE, "Can't open `%s' for reading", (char *)buf);
|
|
}
|
|
} else {
|
|
p = buf;
|
|
}
|
|
|
|
chunk = 0;
|
|
for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) {
|
|
chunk = MIN(bufleft, ffs_opts->bsize);
|
|
if (!isfile)
|
|
;
|
|
else if ((nread = read(ffd, fbuf, chunk)) == -1)
|
|
err(EXIT_FAILURE, "Reading `%s', %lld bytes to go",
|
|
(char *)buf, (long long)bufleft);
|
|
else if (nread != chunk)
|
|
errx(EXIT_FAILURE, "Reading `%s', %lld bytes to go, "
|
|
"read %zd bytes, expected %ju bytes, does "
|
|
"metalog size= attribute mismatch source size?",
|
|
(char *)buf, (long long)bufleft, nread,
|
|
(uintmax_t)chunk);
|
|
else
|
|
p = fbuf;
|
|
offset = DIP(din, size) - bufleft;
|
|
if (debug & DEBUG_FS_WRITE_FILE_BLOCK)
|
|
printf(
|
|
"ffs_write_file: write %p offset %lld size %lld left %lld\n",
|
|
p, (long long)offset,
|
|
(long long)chunk, (long long)bufleft);
|
|
/*
|
|
* XXX if holey support is desired, do the check here
|
|
*
|
|
* XXX might need to write out last bit in fragroundup
|
|
* sized chunk. however, ffs_balloc() handles this for us
|
|
*/
|
|
errno = ffs_balloc(&in, offset, chunk, &bp);
|
|
bad_ffs_write_file:
|
|
if (errno != 0)
|
|
err(1,
|
|
"Writing inode %d (%s), bytes %lld + %lld",
|
|
ino,
|
|
isfile ? (char *)buf :
|
|
inode_type(DIP(din, mode) & S_IFMT),
|
|
(long long)offset, (long long)chunk);
|
|
memcpy(bp->b_data, p, chunk);
|
|
errno = bwrite(bp);
|
|
if (errno != 0)
|
|
goto bad_ffs_write_file;
|
|
brelse(bp);
|
|
if (!isfile)
|
|
p += chunk;
|
|
}
|
|
|
|
write_inode_and_leave:
|
|
ffs_write_inode(&in.i_din, in.i_number, fsopts);
|
|
if (fbuf)
|
|
free(fbuf);
|
|
if (ffd != -1)
|
|
close(ffd);
|
|
}
|
|
|
|
|
|
static void
|
|
ffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap)
|
|
{
|
|
doff_t i;
|
|
struct direct *de;
|
|
uint16_t reclen;
|
|
|
|
assert (dbuf != NULL);
|
|
assert (dir != NULL);
|
|
printf("ffs_dump_dirbuf: dir %s size %d cur %d\n",
|
|
dir, dbuf->size, dbuf->cur);
|
|
|
|
for (i = 0; i < dbuf->size; ) {
|
|
de = (struct direct *)(dbuf->buf + i);
|
|
reclen = ufs_rw16(de->d_reclen, needswap);
|
|
printf(
|
|
" inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n",
|
|
ufs_rw32(de->d_ino, needswap),
|
|
inode_type(DTTOIF(de->d_type)), i, reclen,
|
|
de->d_namlen, de->d_name);
|
|
i += reclen;
|
|
assert(reclen > 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap)
|
|
{
|
|
struct direct de, *dp;
|
|
uint16_t llen, reclen;
|
|
u_char *newbuf;
|
|
|
|
assert (dbuf != NULL);
|
|
assert (name != NULL);
|
|
assert (node != NULL);
|
|
/* create direct entry */
|
|
(void)memset(&de, 0, sizeof(de));
|
|
de.d_ino = ufs_rw32(node->inode->ino, needswap);
|
|
de.d_type = IFTODT(node->type);
|
|
de.d_namlen = (uint8_t)strlen(name);
|
|
strcpy(de.d_name, name);
|
|
reclen = DIRSIZ_SWAP(0, &de, needswap);
|
|
de.d_reclen = ufs_rw16(reclen, needswap);
|
|
|
|
dp = (struct direct *)(dbuf->buf + dbuf->cur);
|
|
llen = 0;
|
|
if (dp != NULL)
|
|
llen = DIRSIZ_SWAP(0, dp, needswap);
|
|
|
|
if (debug & DEBUG_FS_MAKE_DIRBUF)
|
|
printf(
|
|
"ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n"
|
|
" ino %d type %d reclen %d namlen %d name %.30s\n",
|
|
dbuf->size, dbuf->cur, llen,
|
|
ufs_rw32(de.d_ino, needswap), de.d_type, reclen,
|
|
de.d_namlen, de.d_name);
|
|
|
|
if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) {
|
|
if (debug & DEBUG_FS_MAKE_DIRBUF)
|
|
printf("ffs_make_dirbuf: growing buf to %d\n",
|
|
dbuf->size + DIRBLKSIZ);
|
|
newbuf = erealloc(dbuf->buf, dbuf->size + DIRBLKSIZ);
|
|
dbuf->buf = newbuf;
|
|
dbuf->size += DIRBLKSIZ;
|
|
memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ);
|
|
dbuf->cur = dbuf->size - DIRBLKSIZ;
|
|
} else if (dp) { /* shrink end of previous */
|
|
dp->d_reclen = ufs_rw16(llen,needswap);
|
|
dbuf->cur += llen;
|
|
}
|
|
dp = (struct direct *)(dbuf->buf + dbuf->cur);
|
|
memcpy(dp, &de, reclen);
|
|
dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap);
|
|
}
|
|
|
|
/*
|
|
* cribbed from sys/ufs/ffs/ffs_alloc.c
|
|
*/
|
|
static void
|
|
ffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts)
|
|
{
|
|
char *buf;
|
|
struct ufs1_dinode *dp1;
|
|
struct ufs2_dinode *dp2, *dip;
|
|
struct cg *cgp;
|
|
struct fs *fs;
|
|
int cg, cgino;
|
|
uint32_t i;
|
|
daddr_t d;
|
|
char sbbuf[FFS_MAXBSIZE];
|
|
uint32_t initediblk;
|
|
ffs_opt_t *ffs_opts = fsopts->fs_specific;
|
|
|
|
assert (dp != NULL);
|
|
assert (ino > 0);
|
|
assert (fsopts != NULL);
|
|
assert (ffs_opts != NULL);
|
|
|
|
fs = (struct fs *)fsopts->superblock;
|
|
cg = ino_to_cg(fs, ino);
|
|
cgino = ino % fs->fs_ipg;
|
|
if (debug & DEBUG_FS_WRITE_INODE)
|
|
printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n",
|
|
dp, ino, cg, cgino);
|
|
|
|
ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
|
|
fsopts);
|
|
cgp = (struct cg *)sbbuf;
|
|
if (!cg_chkmagic_swap(cgp, fsopts->needswap))
|
|
errx(1, "ffs_write_inode: cg %d: bad magic number", cg);
|
|
|
|
assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino));
|
|
|
|
buf = emalloc(fs->fs_bsize);
|
|
dp1 = (struct ufs1_dinode *)buf;
|
|
dp2 = (struct ufs2_dinode *)buf;
|
|
|
|
if (fs->fs_cstotal.cs_nifree == 0)
|
|
errx(1, "ffs_write_inode: fs out of inodes for ino %u",
|
|
ino);
|
|
if (fs->fs_cs(fs, cg).cs_nifree == 0)
|
|
errx(1,
|
|
"ffs_write_inode: cg %d out of inodes for ino %u",
|
|
cg, ino);
|
|
setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino);
|
|
ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap);
|
|
fs->fs_cstotal.cs_nifree--;
|
|
fs->fs_cs(fs, cg).cs_nifree--;
|
|
if (S_ISDIR(DIP(dp, mode))) {
|
|
ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap);
|
|
fs->fs_cstotal.cs_ndir++;
|
|
fs->fs_cs(fs, cg).cs_ndir++;
|
|
}
|
|
|
|
/*
|
|
* Initialize inode blocks on the fly for UFS2.
|
|
*/
|
|
initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap);
|
|
while (ffs_opts->version == 2 && cgino + INOPB(fs) > initediblk &&
|
|
initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) {
|
|
memset(buf, 0, fs->fs_bsize);
|
|
dip = (struct ufs2_dinode *)buf;
|
|
for (i = 0; i < INOPB(fs); i++) {
|
|
dip->di_gen = random();
|
|
dip++;
|
|
}
|
|
ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs,
|
|
cg * fs->fs_ipg + initediblk)),
|
|
fs->fs_bsize, buf, fsopts);
|
|
initediblk += INOPB(fs);
|
|
cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap);
|
|
}
|
|
|
|
|
|
ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf,
|
|
fsopts);
|
|
|
|
/* now write inode */
|
|
d = fsbtodb(fs, ino_to_fsba(fs, ino));
|
|
ffs_rdfs(d, fs->fs_bsize, buf, fsopts);
|
|
if (fsopts->needswap) {
|
|
if (ffs_opts->version == 1)
|
|
ffs_dinode1_swap(&dp->ffs1_din,
|
|
&dp1[ino_to_fsbo(fs, ino)]);
|
|
else
|
|
ffs_dinode2_swap(&dp->ffs2_din,
|
|
&dp2[ino_to_fsbo(fs, ino)]);
|
|
} else {
|
|
if (ffs_opts->version == 1)
|
|
dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din;
|
|
else
|
|
dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din;
|
|
}
|
|
ffs_wtfs(d, fs->fs_bsize, buf, fsopts);
|
|
free(buf);
|
|
}
|
|
|
|
void
|
|
panic(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
vwarnx(fmt, ap);
|
|
va_end(ap);
|
|
exit(1);
|
|
}
|