Commit a3fb0cf9072c4aa89776526592b359b7caea1bb9
1 parent
ea2384d3
removed unneeded tools
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1038 c046a42c-6fe2-441c-8c8c-71466251a162
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4 changed files
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0 additions
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492 deletions
cow.h deleted
100644 → 0
qemu-mkcow.c deleted
100644 → 0
1 | -/* | |
2 | - * create a COW disk image | |
3 | - * | |
4 | - * Copyright (c) 2003 Fabrice Bellard | |
5 | - * | |
6 | - * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | - * of this software and associated documentation files (the "Software"), to deal | |
8 | - * in the Software without restriction, including without limitation the rights | |
9 | - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | - * copies of the Software, and to permit persons to whom the Software is | |
11 | - * furnished to do so, subject to the following conditions: | |
12 | - * | |
13 | - * The above copyright notice and this permission notice shall be included in | |
14 | - * all copies or substantial portions of the Software. | |
15 | - * | |
16 | - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | - * THE SOFTWARE. | |
23 | - */ | |
24 | -#include <stdlib.h> | |
25 | -#include <stdio.h> | |
26 | -#include <stdarg.h> | |
27 | -#include <string.h> | |
28 | -#include <getopt.h> | |
29 | -#include <inttypes.h> | |
30 | -#include <unistd.h> | |
31 | -#include <fcntl.h> | |
32 | -#include <signal.h> | |
33 | -#include <time.h> | |
34 | -#include <sys/time.h> | |
35 | -#include <errno.h> | |
36 | -#include <sys/stat.h> | |
37 | -#include <netinet/in.h> | |
38 | - | |
39 | -#include "cow.h" | |
40 | - | |
41 | -#include "bswap.h" | |
42 | - | |
43 | -int cow_create(int cow_fd, const char *image_filename, | |
44 | - int64_t image_sectors) | |
45 | -{ | |
46 | - struct cow_header_v2 cow_header; | |
47 | - int fd; | |
48 | - struct stat st; | |
49 | - | |
50 | - memset(&cow_header, 0, sizeof(cow_header)); | |
51 | - cow_header.magic = htonl(COW_MAGIC); | |
52 | - cow_header.version = htonl(COW_VERSION); | |
53 | - if (image_filename) { | |
54 | - fd = open(image_filename, O_RDONLY); | |
55 | - if (fd < 0) { | |
56 | - perror(image_filename); | |
57 | - exit(1); | |
58 | - } | |
59 | - image_sectors = lseek64(fd, 0, SEEK_END); | |
60 | - if (fstat(fd, &st) != 0) { | |
61 | - close(fd); | |
62 | - return -1; | |
63 | - } | |
64 | - close(fd); | |
65 | - image_sectors /= 512; | |
66 | - cow_header.mtime = htonl(st.st_mtime); | |
67 | - realpath(image_filename, cow_header.backing_file); | |
68 | - } | |
69 | - cow_header.sectorsize = htonl(512); | |
70 | - cow_header.size = image_sectors * 512; | |
71 | -#ifndef WORDS_BIGENDIAN | |
72 | - cow_header.size = bswap64(cow_header.size); | |
73 | -#endif | |
74 | - write(cow_fd, &cow_header, sizeof(cow_header)); | |
75 | - /* resize to include at least all the bitmap */ | |
76 | - ftruncate(cow_fd, sizeof(cow_header) + ((image_sectors + 7) >> 3)); | |
77 | - lseek(cow_fd, 0, SEEK_SET); | |
78 | - return 0; | |
79 | -} | |
80 | - | |
81 | -void help(void) | |
82 | -{ | |
83 | - printf("qemu-mkcow version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n" | |
84 | - "usage: qemu-mkcow [-h] [-f disk_image] cow_image [cow_size]\n" | |
85 | - "Create a Copy On Write disk image from an optional raw disk image\n" | |
86 | - "\n" | |
87 | - "-f disk_image set the raw disk image name\n" | |
88 | - "cow_image the created cow_image\n" | |
89 | - "cow_size the create cow_image size in MB if no raw disk image is used\n" | |
90 | - "\n" | |
91 | - "Once the cow_image is created from a raw disk image, you must not modify the original raw disk image\n" | |
92 | - ); | |
93 | - exit(1); | |
94 | -} | |
95 | - | |
96 | -int main(int argc, char **argv) | |
97 | -{ | |
98 | - const char *image_filename, *cow_filename; | |
99 | - int cow_fd, c, nb_args, simple_image; | |
100 | - int64_t image_size; | |
101 | - | |
102 | - image_filename = NULL; | |
103 | - image_size = 0; | |
104 | - simple_image = 0; | |
105 | - for(;;) { | |
106 | - c = getopt(argc, argv, "hf:s"); | |
107 | - if (c == -1) | |
108 | - break; | |
109 | - switch(c) { | |
110 | - case 'h': | |
111 | - help(); | |
112 | - break; | |
113 | - case 'f': | |
114 | - image_filename = optarg; | |
115 | - break; | |
116 | - case 's': | |
117 | - simple_image = 1; | |
118 | - break; | |
119 | - } | |
120 | - } | |
121 | - if (!image_filename) | |
122 | - nb_args = 2; | |
123 | - else | |
124 | - nb_args = 1; | |
125 | - if (optind + nb_args != argc) | |
126 | - help(); | |
127 | - | |
128 | - cow_filename = argv[optind]; | |
129 | - if (nb_args == 2) { | |
130 | - image_size = (int64_t)atoi(argv[optind + 1]) * 2 * 1024; | |
131 | - } | |
132 | - | |
133 | - cow_fd = open(cow_filename, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); | |
134 | - if (!cow_fd < 0) | |
135 | - return -1; | |
136 | - if (simple_image) { | |
137 | - ftruncate64(cow_fd, image_size * 512); | |
138 | - } else { | |
139 | - if (cow_create(cow_fd, image_filename, image_size) < 0) { | |
140 | - fprintf(stderr, "%s: error while formating\n", cow_filename); | |
141 | - exit(1); | |
142 | - } | |
143 | - } | |
144 | - close(cow_fd); | |
145 | - return 0; | |
146 | -} |
vmdk.h deleted
100644 → 0
1 | -/* | |
2 | - Copyright (C) Matthew Chapman 2003 | |
3 | - | |
4 | - This program is free software; you can redistribute it and/or modify | |
5 | - it under the terms of the GNU General Public License as published by | |
6 | - the Free Software Foundation; either version 2 of the License, or | |
7 | - (at your option) any later version. | |
8 | - | |
9 | - This program is distributed in the hope that it will be useful, | |
10 | - but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | - GNU General Public License for more details. | |
13 | - | |
14 | - You should have received a copy of the GNU General Public License | |
15 | - along with this program; if not, write to the Free Software | |
16 | - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | -*/ | |
18 | - | |
19 | -#define SECTOR_BITS 9 | |
20 | -#define SECTOR_SIZE (1 << SECTOR_BITS) | |
21 | -#define SECTOR_MASK (SECTOR_SIZE - 1) | |
22 | - | |
23 | -#define L1_BITS (SECTOR_BITS - 3) | |
24 | -#define L1_SIZE (1 << L1_BITS) | |
25 | -#define L1_MASK (L1_SIZE - 1) | |
26 | - | |
27 | -#define L2_BITS SECTOR_BITS | |
28 | -#define L2_SIZE (1 << L2_BITS) | |
29 | -#define L2_MASK (L2_SIZE - 1) | |
30 | - | |
31 | -#define MIN(x,y) (((x) < (y)) ? (x) : (y)) | |
32 | - | |
33 | -struct cowdisk_header | |
34 | -{ | |
35 | - uint32_t version; | |
36 | - uint32_t flags; | |
37 | - uint32_t disk_sectors; | |
38 | - uint32_t granularity; | |
39 | - uint32_t l1dir_offset; | |
40 | - uint32_t l1dir_size; | |
41 | - uint32_t file_sectors; | |
42 | - uint32_t cylinders; | |
43 | - uint32_t heads; | |
44 | - uint32_t sectors_per_track; | |
45 | -}; | |
46 | - | |
47 | -struct cowdisk_header2 | |
48 | -{ | |
49 | - uint32_t parent_ts; | |
50 | - uint32_t timestamp; | |
51 | -}; | |
52 | - | |
53 | -/* based on vdk 3.1 10-11-2003 by Ken Kato */ | |
54 | - | |
55 | -struct vmdisk_header | |
56 | -{ | |
57 | - uint32_t version; | |
58 | - uint32_t flags; | |
59 | - | |
60 | - int64_t capacity; | |
61 | - int64_t granularity; | |
62 | - int64_t desc_offset; | |
63 | - int64_t desc_size; | |
64 | - int32_t num_gtes_per_gte; | |
65 | - int64_t rgd_offset; | |
66 | - int64_t gd_offset; | |
67 | - int64_t grain_offset; | |
68 | - | |
69 | - char filler[1]; | |
70 | - | |
71 | - char check_bytes[4]; | |
72 | -}; |
vmdk2raw.c deleted
100644 → 0
1 | -/* | |
2 | - vmdk2raw: convert vmware images to raw disk images | |
3 | - Copyright (C) Net Integration Technologies 2004 | |
4 | - Copyright (C) Matthew Chapman 2003 | |
5 | - | |
6 | - This program is free software; you can redistribute it and/or modify | |
7 | - it under the terms of the GNU General Public License as published by | |
8 | - the Free Software Foundation; either version 2 of the License, or | |
9 | - (at your option) any later version. | |
10 | - | |
11 | - This program is distributed in the hope that it will be useful, | |
12 | - but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | - GNU General Public License for more details. | |
15 | - | |
16 | - You should have received a copy of the GNU General Public License | |
17 | - along with this program; if not, write to the Free Software | |
18 | - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | -*/ | |
20 | - | |
21 | -#include <stdlib.h> | |
22 | -#include <stdio.h> | |
23 | -#include <unistd.h> | |
24 | -#include <fcntl.h> | |
25 | -#include <inttypes.h> | |
26 | -#include <sys/types.h> | |
27 | -#include <string.h> | |
28 | -#include <sys/stat.h> | |
29 | -#include <errno.h> | |
30 | -#include "vmdk.h" | |
31 | -#include "config-host.h" | |
32 | - | |
33 | -static struct cowdisk_header header; | |
34 | -static struct vmdisk_header header4; | |
35 | -static off64_t disk_limit; | |
36 | -static unsigned int granule_size; | |
37 | -static uint32_t *l1dir; | |
38 | - | |
39 | -static unsigned int cached_l2dir; | |
40 | -static uint32_t l2dir[L2_SIZE]; | |
41 | - | |
42 | -static struct vmdk_prm { | |
43 | - uint32_t grain_table_size; | |
44 | - uint32_t sectors_per_grain; | |
45 | - uint32_t sectors_per_table; | |
46 | - uint32_t directory_size; | |
47 | -} vdsk; | |
48 | - | |
49 | -static size_t read_physical(int fd, off64_t offset, size_t length, void *buffer) | |
50 | -{ | |
51 | - size_t n; | |
52 | - | |
53 | - if (lseek64(fd, offset, SEEK_SET) == -1) { | |
54 | - printf(" error trying to seek lseek to %lld", offset); | |
55 | - return -1; | |
56 | - } | |
57 | - | |
58 | - n = read(fd, buffer, length); | |
59 | - | |
60 | - if (n == -1) { | |
61 | - printf("read from disk %lld", offset); | |
62 | - return -1; | |
63 | - } | |
64 | - | |
65 | - return n; | |
66 | -} | |
67 | - | |
68 | -static int read_l1dir(int fd, size_t offset, int num) | |
69 | -{ | |
70 | - l1dir = malloc(sizeof(*l1dir) * num); | |
71 | - if (!l1dir) | |
72 | - return -1; | |
73 | - return read_physical(fd, offset << SECTOR_BITS, sizeof(*l1dir) * num, (char *)l1dir) != (sizeof(*l1dir) * num); | |
74 | -} | |
75 | - | |
76 | -static int read_l2dir(int fd, size_t offset, int num) | |
77 | -{ | |
78 | - return read_physical(fd, offset << SECTOR_BITS, sizeof(l2dir[0]) * num, (char *)l2dir) != sizeof(l2dir); | |
79 | -} | |
80 | - | |
81 | -static size_t copy_virtual(struct vmdk_prm *dsk, int in_fd, int out_fd, off64_t offset, void *buffer, size_t length) | |
82 | -{ | |
83 | - | |
84 | - unsigned int granule_offset; | |
85 | - unsigned int grain_index; | |
86 | - unsigned int sector_map_idx; | |
87 | - | |
88 | - granule_offset = offset % granule_size; | |
89 | - length = MIN(length, granule_size - granule_offset); | |
90 | - length = MIN(length, disk_limit - offset); | |
91 | - | |
92 | - sector_map_idx = (offset >> SECTOR_BITS) / dsk->sectors_per_table; | |
93 | - | |
94 | - if (sector_map_idx >= dsk->directory_size) { | |
95 | - fprintf(stderr, "cannot locate grain table for %d in %d\n", sector_map_idx, dsk->directory_size); | |
96 | - return -1; | |
97 | - } | |
98 | - | |
99 | - if (l1dir[sector_map_idx] == 0) | |
100 | - goto zero_fill; | |
101 | - | |
102 | - if (sector_map_idx != cached_l2dir) { | |
103 | - if (read_l2dir(in_fd, l1dir[sector_map_idx], dsk->grain_table_size)) { | |
104 | - fprintf(stderr, "read failed\n"); | |
105 | - return -1; | |
106 | - } | |
107 | - cached_l2dir = sector_map_idx; | |
108 | - } | |
109 | - | |
110 | - grain_index = ((offset >> SECTOR_BITS) % dsk->sectors_per_table) / dsk->sectors_per_grain; | |
111 | - | |
112 | - if (grain_index >= dsk->grain_table_size) { | |
113 | - fprintf(stderr, "grain to large"); | |
114 | - return -1; | |
115 | - } | |
116 | - | |
117 | - if (l2dir[grain_index] == 0) | |
118 | - goto zero_fill; | |
119 | - | |
120 | - if (read_physical(in_fd, (l2dir[grain_index] << SECTOR_BITS) + granule_offset, length, buffer) != length) { | |
121 | - fprintf(stderr, "read error 2\n"); | |
122 | - return -1; | |
123 | - } | |
124 | - | |
125 | - write(out_fd, buffer, length); | |
126 | - return length; | |
127 | - | |
128 | -zero_fill: | |
129 | - /* the last chunk of the file can not be sparse | |
130 | - * or the file will be truncated */ | |
131 | - if (offset + length >= disk_limit) { | |
132 | - if (lseek64(out_fd, length-1, SEEK_CUR) == (off_t)-1) | |
133 | - perror("lseek"); | |
134 | - /* write the last NULL byte instead of seeking */ | |
135 | - const char nil = 0; | |
136 | - write(out_fd, &nil, 1); | |
137 | - } else { | |
138 | - if (lseek64(out_fd, length, SEEK_CUR) == (off_t)-1) | |
139 | - perror("lseek"); | |
140 | - } | |
141 | - return length; | |
142 | -} | |
143 | - | |
144 | -static int open_vmdk4(int fd) | |
145 | -{ | |
146 | - if (read(fd, &header4, sizeof(header4)) != sizeof(header4)) { | |
147 | - perror("read from disk"); | |
148 | - return -1; | |
149 | - } | |
150 | - | |
151 | - granule_size = header4.granularity << SECTOR_BITS; | |
152 | - disk_limit = header4.capacity << SECTOR_BITS; | |
153 | - | |
154 | - cached_l2dir = -1; | |
155 | - vdsk.grain_table_size = header4.num_gtes_per_gte; | |
156 | - vdsk.sectors_per_grain = header4.granularity; | |
157 | - vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain; | |
158 | - vdsk.directory_size = (header4.capacity + vdsk.sectors_per_table - 1) / vdsk.sectors_per_table + 1; | |
159 | - | |
160 | - if (read_l1dir(fd, header4.rgd_offset, vdsk.directory_size)) | |
161 | - return -1; | |
162 | - | |
163 | - return 0; | |
164 | - | |
165 | -} | |
166 | - | |
167 | -static int open_vmdk3(int fd) | |
168 | -{ | |
169 | - if (read(fd, &header, sizeof(header)) != sizeof(header)) { | |
170 | - perror("read from disk\n"); | |
171 | - return -1; | |
172 | - } | |
173 | - granule_size = header.granularity << SECTOR_BITS; | |
174 | - vdsk.sectors_per_grain = header.granularity; | |
175 | - vdsk.grain_table_size = L2_SIZE; | |
176 | - vdsk.sectors_per_table = vdsk.grain_table_size * vdsk.sectors_per_grain; | |
177 | - vdsk.directory_size = L1_SIZE; | |
178 | - if (read_l1dir(fd, header.l1dir_offset, L1_SIZE)) | |
179 | - return -1; | |
180 | - | |
181 | - disk_limit = header.disk_sectors << SECTOR_BITS; | |
182 | - | |
183 | - return fd; | |
184 | -} | |
185 | - | |
186 | -static int open_vmdk(const char *filename) | |
187 | -{ | |
188 | - int fd = open(filename, O_RDONLY | O_LARGEFILE); | |
189 | - if (fd == -1) { | |
190 | - perror(filename); | |
191 | - return -1; | |
192 | - } | |
193 | - | |
194 | - char magic[4]; | |
195 | - if (read(fd, &magic, sizeof(magic)) != sizeof(magic)) { | |
196 | - perror("read from disk"); | |
197 | - return -1; | |
198 | - } | |
199 | - | |
200 | - if (!memcmp(magic, "KDMV", sizeof(magic))) { | |
201 | - open_vmdk4(fd); | |
202 | - } else if (!memcmp(magic, "COWD", sizeof(magic))) { | |
203 | - open_vmdk3(fd); | |
204 | - } else { | |
205 | - fprintf(stderr, "%s is not a VMware virtual disk image\n", filename); | |
206 | - return -1; | |
207 | - } | |
208 | - | |
209 | - cached_l2dir = -1; | |
210 | - return fd; | |
211 | -} | |
212 | - | |
213 | -static void help(void) | |
214 | -{ | |
215 | - printf("vmdk2raw\n" | |
216 | - "usage: vmdk2raw vmware_image output_image\n" | |
217 | - "\n" | |
218 | - "vmware_image a vmware cow image\n" | |
219 | - "output_image the created disk image\n" | |
220 | - ); | |
221 | - exit(1); | |
222 | -} | |
223 | - | |
224 | -#define BUF_SIZE 0x10000 | |
225 | -static void copy_disk(in_fd, out_fd) | |
226 | -{ | |
227 | - char buf[BUF_SIZE]; | |
228 | - off64_t i = 0; | |
229 | - int ret; | |
230 | - while (i < disk_limit) { | |
231 | - ret = copy_virtual(&vdsk, in_fd, out_fd, i, buf, sizeof(buf)); | |
232 | - if (ret < 0) { | |
233 | - fprintf(stderr, "copying failed\n"); | |
234 | - exit(-1); | |
235 | - } | |
236 | - i += ret; | |
237 | - } | |
238 | -} | |
239 | - | |
240 | -int main(int argc, char **argv) | |
241 | -{ | |
242 | - int out_fd, in_fd; | |
243 | - | |
244 | - if (argc < 3) | |
245 | - help(); | |
246 | - | |
247 | - in_fd = open_vmdk(argv[1]); | |
248 | - if (in_fd < 0) { | |
249 | - return -1; | |
250 | - } | |
251 | - | |
252 | - out_fd = open(argv[2], O_WRONLY | O_LARGEFILE | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR); | |
253 | - if (out_fd < 0) { | |
254 | - perror(argv[2]); | |
255 | - return -1; | |
256 | - } | |
257 | - | |
258 | - copy_disk(in_fd, out_fd); | |
259 | - close(out_fd); | |
260 | - return 0; | |
261 | -} |