removed unneeded tools
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1038 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
parent
ea2384d36e
commit
a3fb0cf907
13
cow.h
13
cow.h
@ -1,13 +0,0 @@
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/* user mode linux compatible COW file */
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#define COW_MAGIC 0x4f4f4f4d /* MOOO */
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#define COW_VERSION 2
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struct cow_header_v2 {
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uint32_t magic;
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uint32_t version;
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char backing_file[1024];
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int32_t mtime;
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uint64_t size;
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uint32_t sectorsize;
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};
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146
qemu-mkcow.c
146
qemu-mkcow.c
@ -1,146 +0,0 @@
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/*
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* create a COW disk image
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <getopt.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <time.h>
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#include <sys/time.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <netinet/in.h>
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#include "cow.h"
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#include "bswap.h"
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int cow_create(int cow_fd, const char *image_filename,
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int64_t image_sectors)
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{
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struct cow_header_v2 cow_header;
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int fd;
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struct stat st;
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memset(&cow_header, 0, sizeof(cow_header));
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cow_header.magic = htonl(COW_MAGIC);
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cow_header.version = htonl(COW_VERSION);
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if (image_filename) {
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fd = open(image_filename, O_RDONLY);
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if (fd < 0) {
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perror(image_filename);
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exit(1);
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}
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image_sectors = lseek64(fd, 0, SEEK_END);
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if (fstat(fd, &st) != 0) {
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close(fd);
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return -1;
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}
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close(fd);
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image_sectors /= 512;
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cow_header.mtime = htonl(st.st_mtime);
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realpath(image_filename, cow_header.backing_file);
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}
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cow_header.sectorsize = htonl(512);
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cow_header.size = image_sectors * 512;
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#ifndef WORDS_BIGENDIAN
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cow_header.size = bswap64(cow_header.size);
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#endif
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write(cow_fd, &cow_header, sizeof(cow_header));
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/* resize to include at least all the bitmap */
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ftruncate(cow_fd, sizeof(cow_header) + ((image_sectors + 7) >> 3));
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lseek(cow_fd, 0, SEEK_SET);
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return 0;
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}
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void help(void)
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{
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printf("qemu-mkcow version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
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"usage: qemu-mkcow [-h] [-f disk_image] cow_image [cow_size]\n"
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"Create a Copy On Write disk image from an optional raw disk image\n"
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"\n"
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"-f disk_image set the raw disk image name\n"
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"cow_image the created cow_image\n"
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"cow_size the create cow_image size in MB if no raw disk image is used\n"
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"\n"
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"Once the cow_image is created from a raw disk image, you must not modify the original raw disk image\n"
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);
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exit(1);
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}
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int main(int argc, char **argv)
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{
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const char *image_filename, *cow_filename;
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int cow_fd, c, nb_args, simple_image;
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int64_t image_size;
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image_filename = NULL;
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image_size = 0;
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simple_image = 0;
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for(;;) {
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c = getopt(argc, argv, "hf:s");
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if (c == -1)
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break;
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switch(c) {
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case 'h':
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help();
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break;
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case 'f':
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image_filename = optarg;
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break;
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case 's':
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simple_image = 1;
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break;
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}
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}
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if (!image_filename)
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nb_args = 2;
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else
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nb_args = 1;
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if (optind + nb_args != argc)
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help();
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cow_filename = argv[optind];
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if (nb_args == 2) {
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image_size = (int64_t)atoi(argv[optind + 1]) * 2 * 1024;
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}
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cow_fd = open(cow_filename, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
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if (!cow_fd < 0)
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return -1;
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if (simple_image) {
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ftruncate64(cow_fd, image_size * 512);
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} else {
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if (cow_create(cow_fd, image_filename, image_size) < 0) {
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fprintf(stderr, "%s: error while formating\n", cow_filename);
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exit(1);
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}
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}
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close(cow_fd);
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return 0;
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}
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72
vmdk.h
72
vmdk.h
@ -1,72 +0,0 @@
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/*
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Copyright (C) Matthew Chapman 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define SECTOR_BITS 9
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#define SECTOR_SIZE (1 << SECTOR_BITS)
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#define SECTOR_MASK (SECTOR_SIZE - 1)
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#define L1_BITS (SECTOR_BITS - 3)
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#define L1_SIZE (1 << L1_BITS)
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#define L1_MASK (L1_SIZE - 1)
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#define L2_BITS SECTOR_BITS
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#define L2_SIZE (1 << L2_BITS)
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#define L2_MASK (L2_SIZE - 1)
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#define MIN(x,y) (((x) < (y)) ? (x) : (y))
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struct cowdisk_header
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{
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uint32_t version;
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uint32_t flags;
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uint32_t disk_sectors;
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uint32_t granularity;
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uint32_t l1dir_offset;
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uint32_t l1dir_size;
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uint32_t file_sectors;
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uint32_t cylinders;
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uint32_t heads;
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uint32_t sectors_per_track;
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};
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struct cowdisk_header2
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{
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uint32_t parent_ts;
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uint32_t timestamp;
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};
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/* based on vdk 3.1 10-11-2003 by Ken Kato */
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struct vmdisk_header
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{
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uint32_t version;
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uint32_t flags;
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int64_t capacity;
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int64_t granularity;
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int64_t desc_offset;
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int64_t desc_size;
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int32_t num_gtes_per_gte;
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int64_t rgd_offset;
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int64_t gd_offset;
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int64_t grain_offset;
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char filler[1];
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char check_bytes[4];
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};
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261
vmdk2raw.c
261
vmdk2raw.c
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/*
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vmdk2raw: convert vmware images to raw disk images
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Copyright (C) Net Integration Technologies 2004
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Copyright (C) Matthew Chapman 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "vmdk.h"
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#include "config-host.h"
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static struct cowdisk_header header;
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static struct vmdisk_header header4;
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static off64_t disk_limit;
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static unsigned int granule_size;
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static uint32_t *l1dir;
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static unsigned int cached_l2dir;
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static uint32_t l2dir[L2_SIZE];
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static struct vmdk_prm {
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uint32_t grain_table_size;
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uint32_t sectors_per_grain;
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uint32_t sectors_per_table;
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uint32_t directory_size;
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} vdsk;
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static size_t read_physical(int fd, off64_t offset, size_t length, void *buffer)
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{
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size_t n;
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if (lseek64(fd, offset, SEEK_SET) == -1) {
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printf(" error trying to seek lseek to %lld", offset);
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return -1;
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}
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n = read(fd, buffer, length);
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if (n == -1) {
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printf("read from disk %lld", offset);
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return -1;
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}
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return n;
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}
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static int read_l1dir(int fd, size_t offset, int num)
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{
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l1dir = malloc(sizeof(*l1dir) * num);
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if (!l1dir)
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return -1;
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return read_physical(fd, offset << SECTOR_BITS, sizeof(*l1dir) * num, (char *)l1dir) != (sizeof(*l1dir) * num);
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}
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static int read_l2dir(int fd, size_t offset, int num)
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{
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return read_physical(fd, offset << SECTOR_BITS, sizeof(l2dir[0]) * num, (char *)l2dir) != sizeof(l2dir);
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}
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static size_t copy_virtual(struct vmdk_prm *dsk, int in_fd, int out_fd, off64_t offset, void *buffer, size_t length)
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{
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unsigned int granule_offset;
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unsigned int grain_index;
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unsigned int sector_map_idx;
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granule_offset = offset % granule_size;
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length = MIN(length, granule_size - granule_offset);
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length = MIN(length, disk_limit - offset);
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sector_map_idx = (offset >> SECTOR_BITS) / dsk->sectors_per_table;
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if (sector_map_idx >= dsk->directory_size) {
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fprintf(stderr, "cannot locate grain table for %d in %d\n", sector_map_idx, dsk->directory_size);
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return -1;
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}
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if (l1dir[sector_map_idx] == 0)
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goto zero_fill;
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if (sector_map_idx != cached_l2dir) {
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if (read_l2dir(in_fd, l1dir[sector_map_idx], dsk->grain_table_size)) {
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fprintf(stderr, "read failed\n");
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return -1;
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}
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cached_l2dir = sector_map_idx;
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}
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grain_index = ((offset >> SECTOR_BITS) % dsk->sectors_per_table) / dsk->sectors_per_grain;
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if (grain_index >= dsk->grain_table_size) {
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fprintf(stderr, "grain to large");
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return -1;
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}
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if (l2dir[grain_index] == 0)
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goto zero_fill;
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if (read_physical(in_fd, (l2dir[grain_index] << SECTOR_BITS) + granule_offset, length, buffer) != length) {
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fprintf(stderr, "read error 2\n");
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return -1;
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}
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write(out_fd, buffer, length);
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return length;
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zero_fill:
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/* the last chunk of the file can not be sparse
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* or the file will be truncated */
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if (offset + length >= disk_limit) {
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if (lseek64(out_fd, length-1, SEEK_CUR) == (off_t)-1)
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perror("lseek");
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/* write the last NULL byte instead of seeking */
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const char nil = 0;
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write(out_fd, &nil, 1);
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} else {
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if (lseek64(out_fd, length, SEEK_CUR) == (off_t)-1)
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perror("lseek");
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}
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return length;
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}
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static int open_vmdk4(int fd)
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{
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if (read(fd, &header4, sizeof(header4)) != sizeof(header4)) {
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perror("read from disk");
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return -1;
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}
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granule_size = header4.granularity << SECTOR_BITS;
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disk_limit = header4.capacity << SECTOR_BITS;
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cached_l2dir = -1;
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vdsk.grain_table_size = header4.num_gtes_per_gte;
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vdsk.sectors_per_grain = header4.granularity;
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vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain;
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vdsk.directory_size = (header4.capacity + vdsk.sectors_per_table - 1) / vdsk.sectors_per_table + 1;
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if (read_l1dir(fd, header4.rgd_offset, vdsk.directory_size))
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return -1;
|
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return 0;
|
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|
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}
|
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static int open_vmdk3(int fd)
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{
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if (read(fd, &header, sizeof(header)) != sizeof(header)) {
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perror("read from disk\n");
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return -1;
|
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}
|
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granule_size = header.granularity << SECTOR_BITS;
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vdsk.sectors_per_grain = header.granularity;
|
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vdsk.grain_table_size = L2_SIZE;
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vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain;
|
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vdsk.directory_size = L1_SIZE;
|
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if (read_l1dir(fd, header.l1dir_offset, L1_SIZE))
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return -1;
|
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|
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disk_limit = header.disk_sectors << SECTOR_BITS;
|
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return fd;
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}
|
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|
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static int open_vmdk(const char *filename)
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{
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int fd = open(filename, O_RDONLY | O_LARGEFILE);
|
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if (fd == -1) {
|
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perror(filename);
|
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return -1;
|
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}
|
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|
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char magic[4];
|
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if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) {
|
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perror("read from disk");
|
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return -1;
|
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}
|
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|
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if (!memcmp(magic, "KDMV", sizeof(magic))) {
|
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open_vmdk4(fd);
|
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} else if (!memcmp(magic, "COWD", sizeof(magic))) {
|
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open_vmdk3(fd);
|
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} else {
|
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fprintf(stderr, "%s is not a VMware virtual disk image\n", filename);
|
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return -1;
|
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}
|
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|
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cached_l2dir = -1;
|
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return fd;
|
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}
|
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|
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static void help(void)
|
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{
|
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printf("vmdk2raw\n"
|
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"usage: vmdk2raw vmware_image output_image\n"
|
||||
"\n"
|
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"vmware_image a vmware cow image\n"
|
||||
"output_image the created disk image\n"
|
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);
|
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exit(1);
|
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}
|
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|
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#define BUF_SIZE 0x10000
|
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static void copy_disk(in_fd, out_fd)
|
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{
|
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char buf[BUF_SIZE];
|
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off64_t i = 0;
|
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int ret;
|
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while (i < disk_limit) {
|
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ret = copy_virtual(&vdsk, in_fd, out_fd, i, buf, sizeof(buf));
|
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if (ret < 0) {
|
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fprintf(stderr, "copying failed\n");
|
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exit(-1);
|
||||
}
|
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i += ret;
|
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}
|
||||
}
|
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|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
int out_fd, in_fd;
|
||||
|
||||
if (argc < 3)
|
||||
help();
|
||||
|
||||
in_fd = open_vmdk(argv[1]);
|
||||
if (in_fd < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
out_fd = open(argv[2], O_WRONLY | O_LARGEFILE | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
|
||||
if (out_fd < 0) {
|
||||
perror(argv[2]);
|
||||
return -1;
|
||||
}
|
||||
|
||||
copy_disk(in_fd, out_fd);
|
||||
close(out_fd);
|
||||
return 0;
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user