image up to. From ticket: While trying to run FreeBSD/mips on some device having very small flash media, one is forced to compress file system with mkulzma(8) utility. It is desirable to specify small UFS block/fragment sizes like 4096/512 bytes for makefs(8) and big compression block size like 65535 bytes to mkulzma at the same time. Then one obtains very good comression ratios (like 75% and more) but faces the following problem. geom_uncompress kernel module reports GEOM provider size rounded up to its compression block size. Generally, this changes original media size and now it fails to match the size of embedded UFS file system that leads to other problems, f.e. geom_label kernel module does not like this and skips the file system while tasting the GEOM and looking for UFS label. This makes it impossible to refer to the file system using known UFS label instead of something like /dev/map/rootfs.uncompress. The following patch introduces new command line option "-r roundup" for makefs that makes it round up the image to specified block size. Hence, geom_uncompress does not change GEOM media size for images rounded that way and geom_label accepts such GEOMs just fine. With the patch applied, one can use following commands: $ makefs -t ffs -r 65536 -o bsize=4096,fsize=512,label=flash optimization=space fs.img fs $ mkulzma -s 65536 -o fs.img.ulzma fs.img PR: bin/203707 Submitted by: <eugen@grosbein.net>
374 lines
9.0 KiB
C
374 lines
9.0 KiB
C
/* $NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 christos Exp $ */
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/*
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* Copyright (c) 2001-2003 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/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "makefs.h"
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#include "mtree.h"
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/*
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* list of supported file systems and dispatch functions
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*/
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typedef struct {
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const char *type;
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void (*prepare_options)(fsinfo_t *);
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int (*parse_options)(const char *, fsinfo_t *);
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void (*cleanup_options)(fsinfo_t *);
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void (*make_fs)(const char *, const char *, fsnode *,
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fsinfo_t *);
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} fstype_t;
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static fstype_t fstypes[] = {
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{ "ffs", ffs_prep_opts, ffs_parse_opts, ffs_cleanup_opts, ffs_makefs },
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{ "cd9660", cd9660_prep_opts, cd9660_parse_opts, cd9660_cleanup_opts,
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cd9660_makefs},
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{ .type = NULL },
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};
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u_int debug;
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int dupsok;
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struct timespec start_time;
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static fstype_t *get_fstype(const char *);
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static void usage(void);
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int main(int, char *[]);
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int
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main(int argc, char *argv[])
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{
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struct stat sb;
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struct timeval start;
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fstype_t *fstype;
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fsinfo_t fsoptions;
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fsnode *root;
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int ch, i, len;
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char *subtree;
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char *specfile;
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setprogname(argv[0]);
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debug = 0;
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if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
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errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
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/* set default fsoptions */
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(void)memset(&fsoptions, 0, sizeof(fsoptions));
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fsoptions.fd = -1;
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fsoptions.sectorsize = -1;
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if (fstype->prepare_options)
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fstype->prepare_options(&fsoptions);
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specfile = NULL;
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if (gettimeofday(&start, NULL) == -1)
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err(1, "Unable to get system time");
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start_time.tv_sec = start.tv_sec;
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start_time.tv_nsec = start.tv_usec * 1000;
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while ((ch = getopt(argc, argv, "B:b:Dd:f:F:M:m:N:o:pr:s:S:t:xZ")) != -1) {
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switch (ch) {
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case 'B':
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if (strcmp(optarg, "be") == 0 ||
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strcmp(optarg, "4321") == 0 ||
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strcmp(optarg, "big") == 0) {
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#if BYTE_ORDER == LITTLE_ENDIAN
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fsoptions.needswap = 1;
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#endif
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} else if (strcmp(optarg, "le") == 0 ||
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strcmp(optarg, "1234") == 0 ||
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strcmp(optarg, "little") == 0) {
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#if BYTE_ORDER == BIG_ENDIAN
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fsoptions.needswap = 1;
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#endif
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} else {
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warnx("Invalid endian `%s'.", optarg);
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usage();
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}
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break;
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case 'b':
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len = strlen(optarg) - 1;
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if (optarg[len] == '%') {
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optarg[len] = '\0';
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fsoptions.freeblockpc =
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strsuftoll("free block percentage",
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optarg, 0, 99);
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} else {
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fsoptions.freeblocks =
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strsuftoll("free blocks",
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optarg, 0, LLONG_MAX);
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}
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break;
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case 'D':
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dupsok = 1;
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break;
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case 'd':
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debug = strtoll(optarg, NULL, 0);
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break;
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case 'f':
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len = strlen(optarg) - 1;
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if (optarg[len] == '%') {
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optarg[len] = '\0';
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fsoptions.freefilepc =
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strsuftoll("free file percentage",
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optarg, 0, 99);
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} else {
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fsoptions.freefiles =
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strsuftoll("free files",
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optarg, 0, LLONG_MAX);
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}
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break;
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case 'F':
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specfile = optarg;
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break;
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case 'M':
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fsoptions.minsize =
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strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
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break;
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case 'N':
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if (! setup_getid(optarg))
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errx(1,
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"Unable to use user and group databases in `%s'",
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optarg);
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break;
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case 'm':
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fsoptions.maxsize =
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strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
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break;
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case 'o':
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{
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char *p;
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while ((p = strsep(&optarg, ",")) != NULL) {
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if (*p == '\0')
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errx(1, "Empty option");
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if (! fstype->parse_options(p, &fsoptions))
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usage();
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}
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break;
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}
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case 'p':
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/* Deprecated in favor of 'Z' */
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fsoptions.sparse = 1;
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break;
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case 'r':
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/* Round image size up to specified block size */
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fsoptions.roundup =
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strsuftoll("roundup", optarg, 0, LLONG_MAX);
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break;
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case 's':
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fsoptions.minsize = fsoptions.maxsize =
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strsuftoll("size", optarg, 1LL, LLONG_MAX);
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break;
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case 'S':
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fsoptions.sectorsize =
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(int)strsuftoll("sector size", optarg,
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1LL, INT_MAX);
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break;
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case 't':
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/* Check current one and cleanup if necessary. */
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if (fstype->cleanup_options)
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fstype->cleanup_options(&fsoptions);
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fsoptions.fs_specific = NULL;
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if ((fstype = get_fstype(optarg)) == NULL)
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errx(1, "Unknown fs type `%s'.", optarg);
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fstype->prepare_options(&fsoptions);
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break;
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case 'x':
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fsoptions.onlyspec = 1;
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break;
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case 'Z':
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/* Superscedes 'p' for compatibility with NetBSD makefs(8) */
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fsoptions.sparse = 1;
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break;
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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}
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if (debug) {
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printf("debug mask: 0x%08x\n", debug);
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printf("start time: %ld.%ld, %s",
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(long)start_time.tv_sec, (long)start_time.tv_nsec,
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ctime(&start_time.tv_sec));
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}
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argc -= optind;
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argv += optind;
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if (argc < 2)
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usage();
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/* -x must be accompanied by -F */
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if (fsoptions.onlyspec != 0 && specfile == NULL)
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errx(1, "-x requires -F mtree-specfile.");
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/* Accept '-' as meaning "read from standard input". */
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if (strcmp(argv[1], "-") == 0)
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sb.st_mode = S_IFREG;
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else {
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if (stat(argv[1], &sb) == -1)
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err(1, "Can't stat `%s'", argv[1]);
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}
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switch (sb.st_mode & S_IFMT) {
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case S_IFDIR: /* walk the tree */
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subtree = argv[1];
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TIMER_START(start);
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root = walk_dir(subtree, ".", NULL, NULL);
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TIMER_RESULTS(start, "walk_dir");
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break;
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case S_IFREG: /* read the manifest file */
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subtree = ".";
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TIMER_START(start);
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root = read_mtree(argv[1], NULL);
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TIMER_RESULTS(start, "manifest");
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break;
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default:
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errx(1, "%s: not a file or directory", argv[1]);
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/* NOTREACHED */
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}
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/* append extra directory */
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for (i = 2; i < argc; i++) {
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if (stat(argv[i], &sb) == -1)
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err(1, "Can't stat `%s'", argv[i]);
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if (!S_ISDIR(sb.st_mode))
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errx(1, "%s: not a directory", argv[i]);
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TIMER_START(start);
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root = walk_dir(argv[i], ".", NULL, root);
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TIMER_RESULTS(start, "walk_dir2");
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}
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if (specfile) { /* apply a specfile */
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TIMER_START(start);
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apply_specfile(specfile, subtree, root, fsoptions.onlyspec);
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TIMER_RESULTS(start, "apply_specfile");
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}
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if (debug & DEBUG_DUMP_FSNODES) {
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printf("\nparent: %s\n", subtree);
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dump_fsnodes(root);
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putchar('\n');
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}
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/* build the file system */
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TIMER_START(start);
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fstype->make_fs(argv[0], subtree, root, &fsoptions);
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TIMER_RESULTS(start, "make_fs");
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free_fsnodes(root);
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exit(0);
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/* NOTREACHED */
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}
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int
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set_option(option_t *options, const char *var, const char *val)
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{
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int i;
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for (i = 0; options[i].name != NULL; i++) {
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if (strcmp(options[i].name, var) != 0)
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continue;
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*options[i].value = (int)strsuftoll(options[i].desc, val,
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options[i].minimum, options[i].maximum);
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return (1);
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}
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warnx("Unknown option `%s'", var);
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return (0);
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}
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static fstype_t *
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get_fstype(const char *type)
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{
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int i;
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for (i = 0; fstypes[i].type != NULL; i++)
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if (strcmp(fstypes[i].type, type) == 0)
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return (&fstypes[i]);
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return (NULL);
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}
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static void
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usage(void)
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{
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const char *prog;
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prog = getprogname();
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fprintf(stderr,
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"usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
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"\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-r roundup ]\n"
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"\t[-s image-size] [-b free-blocks] [-f free-files] [-F mtree-specfile]\n"
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"\t[-xZ] [-N userdb-dir] image-file directory | manifest [extra-directory ...]\n",
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prog);
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exit(1);
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}
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